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Build crystal-clear concepts of inertia, frames of reference, pseudo force and first-law applications.
Section 1
Newton's First Law
Newton's First Law states that a body remains at rest or continues to move with uniform velocity in a straight line unless acted upon by a non-zero external force. It is also called the law of inertia.
Galileo's inclined-plane ideas showed that force is not required to maintain motion; force is required to change motion. When net external force is zero, the body is in translational equilibrium.
Conceptual QuestionShow Answer
Question: Why is force not needed to maintain uniform motion on a frictionless surface?
Answer: Because when friction is absent and net external force is zero, acceleration is zero. The object keeps moving with constant velocity by inertia.
Section 2
Inertia
Definition
Inertia is the tendency of a body to resist any change in its state of rest, motion or direction.
Physical Meaning
A body does not change its motion by itself. A net external force is required to produce acceleration.
Mass Measures Inertia
Greater mass means greater resistance to change. Therefore mass is the quantitative measure of inertia.
Section 3
Types of Inertia
Passenger in bus
upper body resists sudden change when the bus starts or stops.
Coin and card experiment
coin tends to remain at rest when card is flicked.
Dust from carpet
dust remains nearly at rest when carpet is beaten.
Turning vehicle
passenger tends to continue in original direction.
Seat belt application
belt provides force to change passenger motion safely.
Spacecraft examples
objects continue moving in near absence of resistive forces.
Sections 4 and 5
Inertial and Non-Inertial Frames
An inertial frame is a rest frame or constant-velocity frame in which Newton's laws are directly valid. Examples include a uniformly moving train, aeroplane, ship, and Earth approximately for many school-level problems.
A non-inertial frame accelerates, decelerates or rotates. In such frames Newton's laws appear to fail unless pseudo force is added. Lift problems, accelerating train problems, accelerating car problems and rotating frames are central examples.
Section 6
Pseudo Force
In a frame accelerating with acceleration a, a mass m appears to experience a pseudo force opposite to frame acceleration.
Pseudo force is not an interaction force. It appears only because the observer's frame is non-inertial.
Section 7
Step-by-Step Procedure for Solving Pseudo Force Problems
Section 8
Advanced Non-Inertial Frame Numericals
1. Block inside accelerating train
Question: Block inside accelerating train: set up the non-inertial frame equations and solve for the required force, normal reaction or acceleration.
Given: Frame acceleration a, mass m, gravity g, and friction if given
Formula: Add Fp=-ma opposite frame acceleration, then apply sum F = 0 or sum F = ma in chosen axes
Calculation: Resolve real forces and pseudo force along convenient axes; compare friction demand with limiting friction where needed
Final Answer: Equation-based final result depends on given values
Exam Tip: Draw the frame acceleration arrow before drawing pseudo force.
2. Block on smooth accelerating trolley
Question: Block on smooth accelerating trolley: set up the non-inertial frame equations and solve for the required force, normal reaction or acceleration.
Given: Frame acceleration a, mass m, gravity g, and friction if given
Formula: Add Fp=-ma opposite frame acceleration, then apply sum F = 0 or sum F = ma in chosen axes
Calculation: Resolve real forces and pseudo force along convenient axes; compare friction demand with limiting friction where needed
Final Answer: Equation-based final result depends on given values
Exam Tip: Draw the frame acceleration arrow before drawing pseudo force.
3. Block on rough accelerating trolley
Question: Block on rough accelerating trolley: set up the non-inertial frame equations and solve for the required force, normal reaction or acceleration.
Given: Frame acceleration a, mass m, gravity g, and friction if given
Formula: Add Fp=-ma opposite frame acceleration, then apply sum F = 0 or sum F = ma in chosen axes
Calculation: Resolve real forces and pseudo force along convenient axes; compare friction demand with limiting friction where needed
Final Answer: Equation-based final result depends on given values
Exam Tip: Draw the frame acceleration arrow before drawing pseudo force.
4. Block on inclined plane inside accelerating lift
Question: Block on inclined plane inside accelerating lift: set up the non-inertial frame equations and solve for the required force, normal reaction or acceleration.
Given: Frame acceleration a, mass m, gravity g, and friction if given
Formula: Add Fp=-ma opposite frame acceleration, then apply sum F = 0 or sum F = ma in chosen axes
Calculation: Resolve real forces and pseudo force along convenient axes; compare friction demand with limiting friction where needed
Final Answer: Equation-based final result depends on given values
Exam Tip: Draw the frame acceleration arrow before drawing pseudo force.
5. Pendulum inside accelerating car
Question: Pendulum inside accelerating car: set up the non-inertial frame equations and solve for the required force, normal reaction or acceleration.
Given: Frame acceleration a, mass m, gravity g, and friction if given
Formula: Add Fp=-ma opposite frame acceleration, then apply sum F = 0 or sum F = ma in chosen axes
Calculation: Resolve real forces and pseudo force along convenient axes; compare friction demand with limiting friction where needed
Final Answer: Equation-based final result depends on given values
Exam Tip: Draw the frame acceleration arrow before drawing pseudo force.
6. Hanging mass inside accelerating lift
Question: Hanging mass inside accelerating lift: set up the non-inertial frame equations and solve for the required force, normal reaction or acceleration.
Given: Frame acceleration a, mass m, gravity g, and friction if given
Formula: Add Fp=-ma opposite frame acceleration, then apply sum F = 0 or sum F = ma in chosen axes
Calculation: Resolve real forces and pseudo force along convenient axes; compare friction demand with limiting friction where needed
Final Answer: Equation-based final result depends on given values
Exam Tip: Draw the frame acceleration arrow before drawing pseudo force.
7. Apparent weight problems
Question: Apparent weight problems: set up the non-inertial frame equations and solve for the required force, normal reaction or acceleration.
Given: Frame acceleration a, mass m, gravity g, and friction if given
Formula: Add Fp=-ma opposite frame acceleration, then apply sum F = 0 or sum F = ma in chosen axes
Calculation: Resolve real forces and pseudo force along convenient axes; compare friction demand with limiting friction where needed
Final Answer: Equation-based final result depends on given values
Exam Tip: Draw the frame acceleration arrow before drawing pseudo force.
8. Elevator moving upward
Question: Elevator moving upward: set up the non-inertial frame equations and solve for the required force, normal reaction or acceleration.
Given: Frame acceleration a, mass m, gravity g, and friction if given
Formula: Add Fp=-ma opposite frame acceleration, then apply sum F = 0 or sum F = ma in chosen axes
Calculation: Resolve real forces and pseudo force along convenient axes; compare friction demand with limiting friction where needed
Final Answer: Equation-based final result depends on given values
Exam Tip: Draw the frame acceleration arrow before drawing pseudo force.
9. Elevator moving downward
Question: Elevator moving downward: set up the non-inertial frame equations and solve for the required force, normal reaction or acceleration.
Given: Frame acceleration a, mass m, gravity g, and friction if given
Formula: Add Fp=-ma opposite frame acceleration, then apply sum F = 0 or sum F = ma in chosen axes
Calculation: Resolve real forces and pseudo force along convenient axes; compare friction demand with limiting friction where needed
Final Answer: Equation-based final result depends on given values
Exam Tip: Draw the frame acceleration arrow before drawing pseudo force.
10. Free fall elevator
Question: Free fall elevator: set up the non-inertial frame equations and solve for the required force, normal reaction or acceleration.
Given: Frame acceleration a, mass m, gravity g, and friction if given
Formula: Add Fp=-ma opposite frame acceleration, then apply sum F = 0 or sum F = ma in chosen axes
Calculation: Resolve real forces and pseudo force along convenient axes; compare friction demand with limiting friction where needed
Final Answer: Equation-based final result depends on given values
Exam Tip: Draw the frame acceleration arrow before drawing pseudo force.
11. Pseudo force on wedge
Question: Pseudo force on wedge: set up the non-inertial frame equations and solve for the required force, normal reaction or acceleration.
Given: Frame acceleration a, mass m, gravity g, and friction if given
Formula: Add Fp=-ma opposite frame acceleration, then apply sum F = 0 or sum F = ma in chosen axes
Calculation: Resolve real forces and pseudo force along convenient axes; compare friction demand with limiting friction where needed
Final Answer: Equation-based final result depends on given values
Exam Tip: Draw the frame acceleration arrow before drawing pseudo force.
12. Acceleration of wedge problems
Question: Acceleration of wedge problems: set up the non-inertial frame equations and solve for the required force, normal reaction or acceleration.
Given: Frame acceleration a, mass m, gravity g, and friction if given
Formula: Add Fp=-ma opposite frame acceleration, then apply sum F = 0 or sum F = ma in chosen axes
Calculation: Resolve real forces and pseudo force along convenient axes; compare friction demand with limiting friction where needed
Final Answer: Equation-based final result depends on given values
Exam Tip: Draw the frame acceleration arrow before drawing pseudo force.
13. Man standing inside accelerating bus
Question: Man standing inside accelerating bus: set up the non-inertial frame equations and solve for the required force, normal reaction or acceleration.
Given: Frame acceleration a, mass m, gravity g, and friction if given
Formula: Add Fp=-ma opposite frame acceleration, then apply sum F = 0 or sum F = ma in chosen axes
Calculation: Resolve real forces and pseudo force along convenient axes; compare friction demand with limiting friction where needed
Final Answer: Equation-based final result depends on given values
Exam Tip: Draw the frame acceleration arrow before drawing pseudo force.
14. Relative acceleration frame problems
Question: Relative acceleration frame problems: set up the non-inertial frame equations and solve for the required force, normal reaction or acceleration.
Given: Frame acceleration a, mass m, gravity g, and friction if given
Formula: Add Fp=-ma opposite frame acceleration, then apply sum F = 0 or sum F = ma in chosen axes
Calculation: Resolve real forces and pseudo force along convenient axes; compare friction demand with limiting friction where needed
Final Answer: Equation-based final result depends on given values
Exam Tip: Draw the frame acceleration arrow before drawing pseudo force.
15. JEE Advanced style pseudo-force problems
Question: JEE Advanced style pseudo-force problems: set up the non-inertial frame equations and solve for the required force, normal reaction or acceleration.
Given: Frame acceleration a, mass m, gravity g, and friction if given
Formula: Add Fp=-ma opposite frame acceleration, then apply sum F = 0 or sum F = ma in chosen axes
Calculation: Resolve real forces and pseudo force along convenient axes; compare friction demand with limiting friction where needed
Final Answer: Equation-based final result depends on given values
Exam Tip: Draw the frame acceleration arrow before drawing pseudo force.
Section 9
Common Student Mistakes
Wrong pseudo-force direction
Fix this by first drawing the frame acceleration arrow, then listing only real contact/non-contact forces, and finally adding pseudo force only if the selected frame is non-inertial.
Forgetting frame acceleration
Fix this by first drawing the frame acceleration arrow, then listing only real contact/non-contact forces, and finally adding pseudo force only if the selected frame is non-inertial.
Applying pseudo force in inertial frame
Fix this by first drawing the frame acceleration arrow, then listing only real contact/non-contact forces, and finally adding pseudo force only if the selected frame is non-inertial.
Missing free body diagram
Fix this by first drawing the frame acceleration arrow, then listing only real contact/non-contact forces, and finally adding pseudo force only if the selected frame is non-inertial.
Sign convention mistakes
Fix this by first drawing the frame acceleration arrow, then listing only real contact/non-contact forces, and finally adding pseudo force only if the selected frame is non-inertial.
Confusing real force with pseudo force
Fix this by first drawing the frame acceleration arrow, then listing only real contact/non-contact forces, and finally adding pseudo force only if the selected frame is non-inertial.
Section 10
Important Numericals
CBSE 1: Passenger in bus
Question: A bus starts suddenly. Why does a standing passenger fall backward?
Given: Initial passenger speed = 0, bus accelerates forward
Formula: Newton's first law
Calculation: Feet move with bus due to contact force, upper body tends to remain at rest
Final Answer: Passenger appears to fall backward
Exam Tip: Always identify which part of body receives external force first.
CBSE 2: Coin-card experiment
Question: A card under a coin is flicked quickly. Why does the coin fall into the glass?
Given: Coin initially at rest
Formula: Inertia of rest
Calculation: Card moves, coin tends to stay at rest; gravity pulls it down after support is removed
Final Answer: Coin falls nearly vertically
Exam Tip: This is a standard inertia of rest example.
NEET 1: Lift upward
Question: A 60 kg student is in a lift accelerating upward at 2 m/s^2. Find apparent weight.
Given: m=60 kg, a=2 m/s^2, g=9.8 m/s^2
Formula: N=m(g+a)
Calculation: N=60(9.8+2)=708 N
Final Answer: 708 N
Exam Tip: Upward acceleration increases apparent weight.
NEET 2: Lift downward
Question: A 50 kg student is in a lift accelerating downward at 3 m/s^2. Find apparent weight.
Given: m=50 kg, a=3 m/s^2
Formula: N=m(g-a)
Calculation: N=50(9.8-3)=340 N
Final Answer: 340 N
Exam Tip: Downward acceleration reduces apparent weight.
JEE Main 1: Smooth trolley
Question: A 2 kg block rests on a smooth trolley accelerating at 4 m/s^2. Find pseudo force in trolley frame.
Given: m=2 kg, a=4 m/s^2
Formula: Fp=-ma
Calculation: Magnitude=2x4=8 N, direction opposite trolley acceleration
Final Answer: 8 N backward
Exam Tip: Pseudo force exists only in trolley frame.
JEE Main 2: Rough trolley
Question: A 5 kg block remains at rest on a trolley accelerating at 2 m/s^2. Find friction needed.
Given: m=5 kg, a=2 m/s^2
Formula: f=ma
Calculation: f=5x2=10 N
Final Answer: 10 N forward on block in ground frame
Exam Tip: In trolley frame, friction balances pseudo force.
JEE Advanced 1: Pendulum in car
Question: A pendulum hangs in a car accelerating at 3 m/s^2. Find tan theta.
Given: a=3, g=9.8
Formula: tan theta=a/g
Calculation: tan theta=3/9.8=0.306
Final Answer: theta approx 17 degrees
Exam Tip: String aligns with effective gravity.
JEE Advanced 2: Apparent gravity
Question: Find effective gravity in a car accelerating at 4 m/s^2.
Given: a=4, g=9.8
Formula: g_eff=sqrt(g^2+a^2)
Calculation: sqrt(96.04+16)=10.58
Final Answer: 10.58 m/s^2
Exam Tip: Use vector sum of gravity and pseudo acceleration.
IB 1: Spacecraft
Question: Why does an astronaut continue moving after a push?
Given: Negligible resistive force
Formula: First law
Calculation: After push, net force becomes almost zero, so velocity remains constant
Final Answer: Motion continues
Exam Tip: No force is required to maintain uniform motion.
IGCSE 1: Seat belt
Question: Explain seat belt function during sudden braking.
Given: Car decelerates suddenly
Formula: Inertia of motion
Calculation: Body tends to continue forward; belt provides backward force
Final Answer: Passenger is restrained
Exam Tip: Seat belt changes motion safely.
A-Level 1: Non-inertial frame
Question: A frame accelerates right with a. What pseudo force on mass m?
Given: Frame acceleration a right
Formula: Fp=-ma
Calculation: Pseudo force magnitude ma left
Final Answer: ma left
Exam Tip: Direction is opposite frame acceleration.
JEE Main 3: Free-fall lift
Question: Find apparent weight in a freely falling lift.
Given: a=g downward
Formula: N=m(g-a)
Calculation: N=m(g-g)=0
Final Answer: Zero
Exam Tip: Free fall produces weightlessness.
JEE Advanced 3: Wedge frame
Question: In wedge frame accelerating right, what extra force is added to a block?
Given: Frame acceleration right
Formula: Fp=-ma
Calculation: Add pseudo force left on block
Final Answer: ma left
Exam Tip: Then resolve along and perpendicular to incline.
NEET 3: Equilibrium
Question: What is net force on a body moving with constant velocity?
Given: Velocity constant
Formula: Fnet=ma, a=0
Calculation: Fnet=0
Final Answer: Zero
Exam Tip: Constant velocity means equilibrium.
CBSE 3: Turning vehicle
Question: Why does a passenger lean outward in a turning bus?
Given: Direction of velocity changes
Formula: Inertia of direction
Calculation: Body tends to keep original direction while bus turns
Final Answer: Passenger appears pushed outward
Exam Tip: In bus frame this is explained using pseudo effect.
Section 11
NEET Question Bank
NEET Exam-style QuestionShow Answer
Question: NEET 1: In a medical entrance problem on inertia of rest, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
NEET Exam-style QuestionShow Answer
Question: NEET 2: In a medical entrance problem on inertia of motion, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
NEET Exam-style QuestionShow Answer
Question: NEET 3: In a medical entrance problem on inertia of direction, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
NEET Exam-style QuestionShow Answer
Question: NEET 4: In a medical entrance problem on first law statement, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
NEET Exam-style QuestionShow Answer
Question: NEET 5: In a medical entrance problem on seat belt safety, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
NEET Exam-style QuestionShow Answer
Question: NEET 6: In a medical entrance problem on bus starting suddenly, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
NEET Exam-style QuestionShow Answer
Question: NEET 7: In a medical entrance problem on bus stopping suddenly, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
NEET Exam-style QuestionShow Answer
Question: NEET 8: In a medical entrance problem on coin-card experiment, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
NEET Exam-style QuestionShow Answer
Question: NEET 9: In a medical entrance problem on dust from carpet, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
NEET Exam-style QuestionShow Answer
Question: NEET 10: In a medical entrance problem on mass and inertia, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
NEET Exam-style QuestionShow Answer
Question: NEET 11: In a medical entrance problem on equilibrium, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
NEET Exam-style QuestionShow Answer
Question: NEET 12: In a medical entrance problem on balanced forces, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
NEET Exam-style QuestionShow Answer
Question: NEET 13: In a medical entrance problem on constant velocity, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
NEET Exam-style QuestionShow Answer
Question: NEET 14: In a medical entrance problem on frame of reference, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
NEET Exam-style QuestionShow Answer
Question: NEET 15: In a medical entrance problem on train frame, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
NEET Exam-style QuestionShow Answer
Question: NEET 16: In a medical entrance problem on lift frame, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
NEET Exam-style QuestionShow Answer
Question: NEET 17: In a medical entrance problem on pseudo force direction, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
NEET Exam-style QuestionShow Answer
Question: NEET 18: In a medical entrance problem on accelerating car, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
NEET Exam-style QuestionShow Answer
Question: NEET 19: In a medical entrance problem on decelerating bus, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
NEET Exam-style QuestionShow Answer
Question: NEET 20: In a medical entrance problem on rotating frame, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
NEET Exam-style QuestionShow Answer
Question: NEET 21: In a medical entrance problem on passenger in turning car, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
NEET Exam-style QuestionShow Answer
Question: NEET 22: In a medical entrance problem on apparent weight, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
NEET Exam-style QuestionShow Answer
Question: NEET 23: In a medical entrance problem on free fall lift, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
NEET Exam-style QuestionShow Answer
Question: NEET 24: In a medical entrance problem on upward accelerating lift, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
NEET Exam-style QuestionShow Answer
Question: NEET 25: In a medical entrance problem on downward accelerating lift, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
NEET Exam-style QuestionShow Answer
Question: NEET 26: In a medical entrance problem on inertia of rest, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
NEET Exam-style QuestionShow Answer
Question: NEET 27: In a medical entrance problem on inertia of motion, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
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Question: NEET 28: In a medical entrance problem on inertia of direction, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
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Question: NEET 29: In a medical entrance problem on first law statement, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
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Question: NEET 30: In a medical entrance problem on seat belt safety, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
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Question: NEET 31: In a medical entrance problem on bus starting suddenly, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
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Question: NEET 32: In a medical entrance problem on bus stopping suddenly, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
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Question: NEET 33: In a medical entrance problem on coin-card experiment, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
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Question: NEET 34: In a medical entrance problem on dust from carpet, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
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Question: NEET 35: In a medical entrance problem on mass and inertia, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
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Question: NEET 36: In a medical entrance problem on equilibrium, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
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Question: NEET 37: In a medical entrance problem on balanced forces, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
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Question: NEET 38: In a medical entrance problem on constant velocity, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
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Question: NEET 39: In a medical entrance problem on frame of reference, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
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Question: NEET 40: In a medical entrance problem on train frame, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
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Question: NEET 41: In a medical entrance problem on lift frame, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
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Question: NEET 42: In a medical entrance problem on pseudo force direction, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
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Question: NEET 43: In a medical entrance problem on accelerating car, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
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Question: NEET 44: In a medical entrance problem on decelerating bus, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
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Question: NEET 45: In a medical entrance problem on rotating frame, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
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Question: NEET 46: In a medical entrance problem on passenger in turning car, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
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Question: NEET 47: In a medical entrance problem on apparent weight, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
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Question: NEET 48: In a medical entrance problem on free fall lift, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
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Question: NEET 49: In a medical entrance problem on upward accelerating lift, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
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Question: NEET 50: In a medical entrance problem on downward accelerating lift, which statement correctly applies Newton's first law or pseudo force analysis? Options: (A) A force is required to maintain uniform motion. (B) Net force zero means velocity remains constant in an inertial frame. (C) Pseudo force is applied in every frame. (D) Mass does not affect inertia.
Answer: Correct option: B. In an inertial frame, zero net external force means the body remains at rest or continues with uniform velocity. Pseudo force is introduced only when analysis is done from an accelerating or rotating frame.
Section 12
JEE Main Question Bank
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Question: JEE Main 1: A block of mass 1 kg is observed from a trolley accelerating horizontally with 2 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.10.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 2 N and maximum static friction is mu mg = 0.10 x 1 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 2: A block of mass 2 kg is observed from a trolley accelerating horizontally with 3 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.15.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 6 N and maximum static friction is mu mg = 0.15 x 2 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 3: A block of mass 3 kg is observed from a trolley accelerating horizontally with 4 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.20.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 12 N and maximum static friction is mu mg = 0.20 x 3 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 4: A block of mass 4 kg is observed from a trolley accelerating horizontally with 5 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.25.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 20 N and maximum static friction is mu mg = 0.25 x 4 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 5: A block of mass 5 kg is observed from a trolley accelerating horizontally with 6 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.10.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 30 N and maximum static friction is mu mg = 0.10 x 5 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 6: A block of mass 1 kg is observed from a trolley accelerating horizontally with 7 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.15.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 7 N and maximum static friction is mu mg = 0.15 x 1 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 7: A block of mass 2 kg is observed from a trolley accelerating horizontally with 2 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.20.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 4 N and maximum static friction is mu mg = 0.20 x 2 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 8: A block of mass 3 kg is observed from a trolley accelerating horizontally with 3 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.25.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 9 N and maximum static friction is mu mg = 0.25 x 3 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 9: A block of mass 4 kg is observed from a trolley accelerating horizontally with 4 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.10.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 16 N and maximum static friction is mu mg = 0.10 x 4 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 10: A block of mass 5 kg is observed from a trolley accelerating horizontally with 5 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.15.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 25 N and maximum static friction is mu mg = 0.15 x 5 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 11: A block of mass 1 kg is observed from a trolley accelerating horizontally with 6 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.20.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 6 N and maximum static friction is mu mg = 0.20 x 1 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 12: A block of mass 2 kg is observed from a trolley accelerating horizontally with 7 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.25.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 14 N and maximum static friction is mu mg = 0.25 x 2 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 13: A block of mass 3 kg is observed from a trolley accelerating horizontally with 2 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.10.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 6 N and maximum static friction is mu mg = 0.10 x 3 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 14: A block of mass 4 kg is observed from a trolley accelerating horizontally with 3 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.15.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 12 N and maximum static friction is mu mg = 0.15 x 4 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 15: A block of mass 5 kg is observed from a trolley accelerating horizontally with 4 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.20.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 20 N and maximum static friction is mu mg = 0.20 x 5 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 16: A block of mass 1 kg is observed from a trolley accelerating horizontally with 5 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.25.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 5 N and maximum static friction is mu mg = 0.25 x 1 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 17: A block of mass 2 kg is observed from a trolley accelerating horizontally with 6 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.10.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 12 N and maximum static friction is mu mg = 0.10 x 2 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 18: A block of mass 3 kg is observed from a trolley accelerating horizontally with 7 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.15.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 21 N and maximum static friction is mu mg = 0.15 x 3 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 19: A block of mass 4 kg is observed from a trolley accelerating horizontally with 2 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.20.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 8 N and maximum static friction is mu mg = 0.20 x 4 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 20: A block of mass 5 kg is observed from a trolley accelerating horizontally with 3 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.25.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 15 N and maximum static friction is mu mg = 0.25 x 5 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 21: A block of mass 1 kg is observed from a trolley accelerating horizontally with 4 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.10.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 4 N and maximum static friction is mu mg = 0.10 x 1 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 22: A block of mass 2 kg is observed from a trolley accelerating horizontally with 5 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.15.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 10 N and maximum static friction is mu mg = 0.15 x 2 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 23: A block of mass 3 kg is observed from a trolley accelerating horizontally with 6 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.20.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 18 N and maximum static friction is mu mg = 0.20 x 3 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 24: A block of mass 4 kg is observed from a trolley accelerating horizontally with 7 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.25.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 28 N and maximum static friction is mu mg = 0.25 x 4 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 25: A block of mass 5 kg is observed from a trolley accelerating horizontally with 2 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.10.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 10 N and maximum static friction is mu mg = 0.10 x 5 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 26: A block of mass 1 kg is observed from a trolley accelerating horizontally with 3 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.15.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 3 N and maximum static friction is mu mg = 0.15 x 1 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 27: A block of mass 2 kg is observed from a trolley accelerating horizontally with 4 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.20.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 8 N and maximum static friction is mu mg = 0.20 x 2 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 28: A block of mass 3 kg is observed from a trolley accelerating horizontally with 5 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.25.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 15 N and maximum static friction is mu mg = 0.25 x 3 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 29: A block of mass 4 kg is observed from a trolley accelerating horizontally with 6 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.10.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 24 N and maximum static friction is mu mg = 0.10 x 4 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 30: A block of mass 5 kg is observed from a trolley accelerating horizontally with 7 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.15.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 35 N and maximum static friction is mu mg = 0.15 x 5 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 31: A block of mass 1 kg is observed from a trolley accelerating horizontally with 2 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.20.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 2 N and maximum static friction is mu mg = 0.20 x 1 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 32: A block of mass 2 kg is observed from a trolley accelerating horizontally with 3 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.25.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 6 N and maximum static friction is mu mg = 0.25 x 2 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 33: A block of mass 3 kg is observed from a trolley accelerating horizontally with 4 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.10.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 12 N and maximum static friction is mu mg = 0.10 x 3 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 34: A block of mass 4 kg is observed from a trolley accelerating horizontally with 5 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.15.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 20 N and maximum static friction is mu mg = 0.15 x 4 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 35: A block of mass 5 kg is observed from a trolley accelerating horizontally with 6 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.20.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 30 N and maximum static friction is mu mg = 0.20 x 5 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 36: A block of mass 1 kg is observed from a trolley accelerating horizontally with 7 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.25.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 7 N and maximum static friction is mu mg = 0.25 x 1 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 37: A block of mass 2 kg is observed from a trolley accelerating horizontally with 2 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.10.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 4 N and maximum static friction is mu mg = 0.10 x 2 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 38: A block of mass 3 kg is observed from a trolley accelerating horizontally with 3 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.15.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 9 N and maximum static friction is mu mg = 0.15 x 3 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 39: A block of mass 4 kg is observed from a trolley accelerating horizontally with 4 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.20.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 16 N and maximum static friction is mu mg = 0.20 x 4 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 40: A block of mass 5 kg is observed from a trolley accelerating horizontally with 5 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.25.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 25 N and maximum static friction is mu mg = 0.25 x 5 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 41: A block of mass 1 kg is observed from a trolley accelerating horizontally with 6 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.10.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 6 N and maximum static friction is mu mg = 0.10 x 1 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 42: A block of mass 2 kg is observed from a trolley accelerating horizontally with 7 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.15.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 14 N and maximum static friction is mu mg = 0.15 x 2 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 43: A block of mass 3 kg is observed from a trolley accelerating horizontally with 2 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.20.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 6 N and maximum static friction is mu mg = 0.20 x 3 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 44: A block of mass 4 kg is observed from a trolley accelerating horizontally with 3 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.25.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 12 N and maximum static friction is mu mg = 0.25 x 4 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 45: A block of mass 5 kg is observed from a trolley accelerating horizontally with 4 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.10.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 20 N and maximum static friction is mu mg = 0.10 x 5 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 46: A block of mass 1 kg is observed from a trolley accelerating horizontally with 5 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.15.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 5 N and maximum static friction is mu mg = 0.15 x 1 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 47: A block of mass 2 kg is observed from a trolley accelerating horizontally with 6 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.20.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 12 N and maximum static friction is mu mg = 0.20 x 2 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 48: A block of mass 3 kg is observed from a trolley accelerating horizontally with 7 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.25.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 21 N and maximum static friction is mu mg = 0.25 x 3 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 49: A block of mass 4 kg is observed from a trolley accelerating horizontally with 2 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.10.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 8 N and maximum static friction is mu mg = 0.10 x 4 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Main 50: A block of mass 5 kg is observed from a trolley accelerating horizontally with 3 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.15.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 15 N and maximum static friction is mu mg = 0.15 x 5 x 9.8 N. Compare these to decide rest or slipping.
Section 13
JEE Advanced Question Bank
JEE Advanced Exam-style QuestionShow Answer
Question: JEE Advanced 1: A block of mass 1 kg is observed from a trolley accelerating horizontally with 2 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.10.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 2 N and maximum static friction is mu mg = 0.10 x 1 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Advanced 2: A block of mass 2 kg is observed from a trolley accelerating horizontally with 3 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.15.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 6 N and maximum static friction is mu mg = 0.15 x 2 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Advanced 3: A block of mass 3 kg is observed from a trolley accelerating horizontally with 4 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.20.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 12 N and maximum static friction is mu mg = 0.20 x 3 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Advanced 4: A block of mass 4 kg is observed from a trolley accelerating horizontally with 5 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.25.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 20 N and maximum static friction is mu mg = 0.25 x 4 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Advanced 5: A block of mass 5 kg is observed from a trolley accelerating horizontally with 6 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.10.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 30 N and maximum static friction is mu mg = 0.10 x 5 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Advanced 6: A block of mass 1 kg is observed from a trolley accelerating horizontally with 7 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.15.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 7 N and maximum static friction is mu mg = 0.15 x 1 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Advanced 7: A block of mass 2 kg is observed from a trolley accelerating horizontally with 2 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.20.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 4 N and maximum static friction is mu mg = 0.20 x 2 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Advanced 8: A block of mass 3 kg is observed from a trolley accelerating horizontally with 3 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.25.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 9 N and maximum static friction is mu mg = 0.25 x 3 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Advanced 9: A block of mass 4 kg is observed from a trolley accelerating horizontally with 4 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.10.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 16 N and maximum static friction is mu mg = 0.10 x 4 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Advanced 10: A block of mass 5 kg is observed from a trolley accelerating horizontally with 5 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.15.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 25 N and maximum static friction is mu mg = 0.15 x 5 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Advanced 11: A block of mass 1 kg is observed from a trolley accelerating horizontally with 6 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.20.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 6 N and maximum static friction is mu mg = 0.20 x 1 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Advanced 12: A block of mass 2 kg is observed from a trolley accelerating horizontally with 7 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.25.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 14 N and maximum static friction is mu mg = 0.25 x 2 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Advanced 13: A block of mass 3 kg is observed from a trolley accelerating horizontally with 2 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.10.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 6 N and maximum static friction is mu mg = 0.10 x 3 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Advanced 14: A block of mass 4 kg is observed from a trolley accelerating horizontally with 3 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.15.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 12 N and maximum static friction is mu mg = 0.15 x 4 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Advanced 15: A block of mass 5 kg is observed from a trolley accelerating horizontally with 4 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.20.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 20 N and maximum static friction is mu mg = 0.20 x 5 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Advanced 16: A block of mass 1 kg is observed from a trolley accelerating horizontally with 5 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.25.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 5 N and maximum static friction is mu mg = 0.25 x 1 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Advanced 17: A block of mass 2 kg is observed from a trolley accelerating horizontally with 6 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.10.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 12 N and maximum static friction is mu mg = 0.10 x 2 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Advanced 18: A block of mass 3 kg is observed from a trolley accelerating horizontally with 7 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.15.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 21 N and maximum static friction is mu mg = 0.15 x 3 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Advanced 19: A block of mass 4 kg is observed from a trolley accelerating horizontally with 2 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.20.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 8 N and maximum static friction is mu mg = 0.20 x 4 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Advanced 20: A block of mass 5 kg is observed from a trolley accelerating horizontally with 3 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.25.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 15 N and maximum static friction is mu mg = 0.25 x 5 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Advanced 21: A block of mass 1 kg is observed from a trolley accelerating horizontally with 4 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.10.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 4 N and maximum static friction is mu mg = 0.10 x 1 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Advanced 22: A block of mass 2 kg is observed from a trolley accelerating horizontally with 5 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.15.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 10 N and maximum static friction is mu mg = 0.15 x 2 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Advanced 23: A block of mass 3 kg is observed from a trolley accelerating horizontally with 6 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.20.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 18 N and maximum static friction is mu mg = 0.20 x 3 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Advanced 24: A block of mass 4 kg is observed from a trolley accelerating horizontally with 7 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.25.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 28 N and maximum static friction is mu mg = 0.25 x 4 x 9.8 N. Compare these to decide rest or slipping.
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Question: JEE Advanced 25: A block of mass 5 kg is observed from a trolley accelerating horizontally with 2 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.10.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 10 N and maximum static friction is mu mg = 0.10 x 5 x 9.8 N. Compare these to decide rest or slipping.
JEE Advanced Exam-style QuestionShow Answer
Question: JEE Advanced 26: A block of mass 1 kg is observed from a trolley accelerating horizontally with 3 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.15.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 3 N and maximum static friction is mu mg = 0.15 x 1 x 9.8 N. Compare these to decide rest or slipping.
JEE Advanced Exam-style QuestionShow Answer
Question: JEE Advanced 27: A block of mass 2 kg is observed from a trolley accelerating horizontally with 4 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.20.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 8 N and maximum static friction is mu mg = 0.20 x 2 x 9.8 N. Compare these to decide rest or slipping.
JEE Advanced Exam-style QuestionShow Answer
Question: JEE Advanced 28: A block of mass 3 kg is observed from a trolley accelerating horizontally with 5 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.25.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 15 N and maximum static friction is mu mg = 0.25 x 3 x 9.8 N. Compare these to decide rest or slipping.
JEE Advanced Exam-style QuestionShow Answer
Question: JEE Advanced 29: A block of mass 4 kg is observed from a trolley accelerating horizontally with 6 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.10.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 24 N and maximum static friction is mu mg = 0.10 x 4 x 9.8 N. Compare these to decide rest or slipping.
JEE Advanced Exam-style QuestionShow Answer
Question: JEE Advanced 30: A block of mass 5 kg is observed from a trolley accelerating horizontally with 7 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.15.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 35 N and maximum static friction is mu mg = 0.15 x 5 x 9.8 N. Compare these to decide rest or slipping.
JEE Advanced Exam-style QuestionShow Answer
Question: JEE Advanced 31: A block of mass 1 kg is observed from a trolley accelerating horizontally with 2 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.20.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 2 N and maximum static friction is mu mg = 0.20 x 1 x 9.8 N. Compare these to decide rest or slipping.
JEE Advanced Exam-style QuestionShow Answer
Question: JEE Advanced 32: A block of mass 2 kg is observed from a trolley accelerating horizontally with 3 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.25.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 6 N and maximum static friction is mu mg = 0.25 x 2 x 9.8 N. Compare these to decide rest or slipping.
JEE Advanced Exam-style QuestionShow Answer
Question: JEE Advanced 33: A block of mass 3 kg is observed from a trolley accelerating horizontally with 4 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.10.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 12 N and maximum static friction is mu mg = 0.10 x 3 x 9.8 N. Compare these to decide rest or slipping.
JEE Advanced Exam-style QuestionShow Answer
Question: JEE Advanced 34: A block of mass 4 kg is observed from a trolley accelerating horizontally with 5 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.15.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 20 N and maximum static friction is mu mg = 0.15 x 4 x 9.8 N. Compare these to decide rest or slipping.
JEE Advanced Exam-style QuestionShow Answer
Question: JEE Advanced 35: A block of mass 5 kg is observed from a trolley accelerating horizontally with 6 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.20.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 30 N and maximum static friction is mu mg = 0.20 x 5 x 9.8 N. Compare these to decide rest or slipping.
JEE Advanced Exam-style QuestionShow Answer
Question: JEE Advanced 36: A block of mass 1 kg is observed from a trolley accelerating horizontally with 7 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.25.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 7 N and maximum static friction is mu mg = 0.25 x 1 x 9.8 N. Compare these to decide rest or slipping.
JEE Advanced Exam-style QuestionShow Answer
Question: JEE Advanced 37: A block of mass 2 kg is observed from a trolley accelerating horizontally with 2 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.10.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 4 N and maximum static friction is mu mg = 0.10 x 2 x 9.8 N. Compare these to decide rest or slipping.
JEE Advanced Exam-style QuestionShow Answer
Question: JEE Advanced 38: A block of mass 3 kg is observed from a trolley accelerating horizontally with 3 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.15.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 9 N and maximum static friction is mu mg = 0.15 x 3 x 9.8 N. Compare these to decide rest or slipping.
JEE Advanced Exam-style QuestionShow Answer
Question: JEE Advanced 39: A block of mass 4 kg is observed from a trolley accelerating horizontally with 4 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.20.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 16 N and maximum static friction is mu mg = 0.20 x 4 x 9.8 N. Compare these to decide rest or slipping.
JEE Advanced Exam-style QuestionShow Answer
Question: JEE Advanced 40: A block of mass 5 kg is observed from a trolley accelerating horizontally with 5 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.25.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 25 N and maximum static friction is mu mg = 0.25 x 5 x 9.8 N. Compare these to decide rest or slipping.
JEE Advanced Exam-style QuestionShow Answer
Question: JEE Advanced 41: A block of mass 1 kg is observed from a trolley accelerating horizontally with 6 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.10.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 6 N and maximum static friction is mu mg = 0.10 x 1 x 9.8 N. Compare these to decide rest or slipping.
JEE Advanced Exam-style QuestionShow Answer
Question: JEE Advanced 42: A block of mass 2 kg is observed from a trolley accelerating horizontally with 7 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.15.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 14 N and maximum static friction is mu mg = 0.15 x 2 x 9.8 N. Compare these to decide rest or slipping.
JEE Advanced Exam-style QuestionShow Answer
Question: JEE Advanced 43: A block of mass 3 kg is observed from a trolley accelerating horizontally with 2 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.20.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 6 N and maximum static friction is mu mg = 0.20 x 3 x 9.8 N. Compare these to decide rest or slipping.
JEE Advanced Exam-style QuestionShow Answer
Question: JEE Advanced 44: A block of mass 4 kg is observed from a trolley accelerating horizontally with 3 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.25.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 12 N and maximum static friction is mu mg = 0.25 x 4 x 9.8 N. Compare these to decide rest or slipping.
JEE Advanced Exam-style QuestionShow Answer
Question: JEE Advanced 45: A block of mass 5 kg is observed from a trolley accelerating horizontally with 4 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.10.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 20 N and maximum static friction is mu mg = 0.10 x 5 x 9.8 N. Compare these to decide rest or slipping.
JEE Advanced Exam-style QuestionShow Answer
Question: JEE Advanced 46: A block of mass 1 kg is observed from a trolley accelerating horizontally with 5 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.15.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 5 N and maximum static friction is mu mg = 0.15 x 1 x 9.8 N. Compare these to decide rest or slipping.
JEE Advanced Exam-style QuestionShow Answer
Question: JEE Advanced 47: A block of mass 2 kg is observed from a trolley accelerating horizontally with 6 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.20.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 12 N and maximum static friction is mu mg = 0.20 x 2 x 9.8 N. Compare these to decide rest or slipping.
JEE Advanced Exam-style QuestionShow Answer
Question: JEE Advanced 48: A block of mass 3 kg is observed from a trolley accelerating horizontally with 7 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.25.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 21 N and maximum static friction is mu mg = 0.25 x 3 x 9.8 N. Compare these to decide rest or slipping.
JEE Advanced Exam-style QuestionShow Answer
Question: JEE Advanced 49: A block of mass 4 kg is observed from a trolley accelerating horizontally with 2 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.10.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 8 N and maximum static friction is mu mg = 0.10 x 4 x 9.8 N. Compare these to decide rest or slipping.
JEE Advanced Exam-style QuestionShow Answer
Question: JEE Advanced 50: A block of mass 5 kg is observed from a trolley accelerating horizontally with 3 m/s^2. Discuss the pseudo force direction and write the equation of equilibrium if the block appears at rest relative to the trolley. For rough cases, take coefficient of friction 0.15.
Answer: In the trolley frame, apply pseudo force Fp = m a opposite to trolley acceleration. If the block is at rest relative to the trolley, horizontal equilibrium requires friction or an applied force to balance ma. For a rough horizontal surface, required friction is 15 N and maximum static friction is mu mg = 0.15 x 5 x 9.8 N. Compare these to decide rest or slipping.
Section 14
IB / IGCSE / A-Level Questions
IB Questions
IB QuestionShow Answer
Question: IB 1: A conceptual physics student studies inertia. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IB QuestionShow Answer
Question: IB 2: A conceptual physics student studies balanced forces. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IB QuestionShow Answer
Question: IB 3: A conceptual physics student studies seat belts. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IB QuestionShow Answer
Question: IB 4: A conceptual physics student studies elevator apparent weight. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IB QuestionShow Answer
Question: IB 5: A conceptual physics student studies uniform motion. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IB QuestionShow Answer
Question: IB 6: A conceptual physics student studies accelerating bus. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IB QuestionShow Answer
Question: IB 7: A conceptual physics student studies turning car. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IB QuestionShow Answer
Question: IB 8: A conceptual physics student studies spacecraft inertia. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IB QuestionShow Answer
Question: IB 9: A conceptual physics student studies inertia. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IB QuestionShow Answer
Question: IB 10: A conceptual physics student studies balanced forces. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IB QuestionShow Answer
Question: IB 11: A conceptual physics student studies seat belts. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IB QuestionShow Answer
Question: IB 12: A conceptual physics student studies elevator apparent weight. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IB QuestionShow Answer
Question: IB 13: A conceptual physics student studies uniform motion. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IB QuestionShow Answer
Question: IB 14: A conceptual physics student studies accelerating bus. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IB QuestionShow Answer
Question: IB 15: A conceptual physics student studies turning car. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IB QuestionShow Answer
Question: IB 16: A conceptual physics student studies spacecraft inertia. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IB QuestionShow Answer
Question: IB 17: A conceptual physics student studies inertia. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IB QuestionShow Answer
Question: IB 18: A conceptual physics student studies balanced forces. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IB QuestionShow Answer
Question: IB 19: A conceptual physics student studies seat belts. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IB QuestionShow Answer
Question: IB 20: A conceptual physics student studies elevator apparent weight. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IB QuestionShow Answer
Question: IB 21: A conceptual physics student studies uniform motion. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IB QuestionShow Answer
Question: IB 22: A conceptual physics student studies accelerating bus. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IB QuestionShow Answer
Question: IB 23: A conceptual physics student studies turning car. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IB QuestionShow Answer
Question: IB 24: A conceptual physics student studies spacecraft inertia. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IB QuestionShow Answer
Question: IB 25: A conceptual physics student studies inertia. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IGCSE Questions
IGCSE QuestionShow Answer
Question: IGCSE 1: A school physics student studies inertia. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IGCSE QuestionShow Answer
Question: IGCSE 2: A school physics student studies balanced forces. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IGCSE QuestionShow Answer
Question: IGCSE 3: A school physics student studies seat belts. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IGCSE QuestionShow Answer
Question: IGCSE 4: A school physics student studies elevator apparent weight. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IGCSE QuestionShow Answer
Question: IGCSE 5: A school physics student studies uniform motion. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IGCSE QuestionShow Answer
Question: IGCSE 6: A school physics student studies accelerating bus. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IGCSE QuestionShow Answer
Question: IGCSE 7: A school physics student studies turning car. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IGCSE QuestionShow Answer
Question: IGCSE 8: A school physics student studies spacecraft inertia. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IGCSE QuestionShow Answer
Question: IGCSE 9: A school physics student studies inertia. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IGCSE QuestionShow Answer
Question: IGCSE 10: A school physics student studies balanced forces. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IGCSE QuestionShow Answer
Question: IGCSE 11: A school physics student studies seat belts. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IGCSE QuestionShow Answer
Question: IGCSE 12: A school physics student studies elevator apparent weight. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IGCSE QuestionShow Answer
Question: IGCSE 13: A school physics student studies uniform motion. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IGCSE QuestionShow Answer
Question: IGCSE 14: A school physics student studies accelerating bus. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IGCSE QuestionShow Answer
Question: IGCSE 15: A school physics student studies turning car. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IGCSE QuestionShow Answer
Question: IGCSE 16: A school physics student studies spacecraft inertia. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IGCSE QuestionShow Answer
Question: IGCSE 17: A school physics student studies inertia. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IGCSE QuestionShow Answer
Question: IGCSE 18: A school physics student studies balanced forces. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IGCSE QuestionShow Answer
Question: IGCSE 19: A school physics student studies seat belts. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IGCSE QuestionShow Answer
Question: IGCSE 20: A school physics student studies elevator apparent weight. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IGCSE QuestionShow Answer
Question: IGCSE 21: A school physics student studies uniform motion. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IGCSE QuestionShow Answer
Question: IGCSE 22: A school physics student studies accelerating bus. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IGCSE QuestionShow Answer
Question: IGCSE 23: A school physics student studies turning car. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IGCSE QuestionShow Answer
Question: IGCSE 24: A school physics student studies spacecraft inertia. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
IGCSE QuestionShow Answer
Question: IGCSE 25: A school physics student studies inertia. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
A-Level Questions
A-Level QuestionShow Answer
Question: A-Level 1: A advanced school physics student studies inertia. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
A-Level QuestionShow Answer
Question: A-Level 2: A advanced school physics student studies balanced forces. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
A-Level QuestionShow Answer
Question: A-Level 3: A advanced school physics student studies seat belts. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
A-Level QuestionShow Answer
Question: A-Level 4: A advanced school physics student studies elevator apparent weight. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
A-Level QuestionShow Answer
Question: A-Level 5: A advanced school physics student studies uniform motion. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
A-Level QuestionShow Answer
Question: A-Level 6: A advanced school physics student studies accelerating bus. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
A-Level QuestionShow Answer
Question: A-Level 7: A advanced school physics student studies turning car. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
A-Level QuestionShow Answer
Question: A-Level 8: A advanced school physics student studies spacecraft inertia. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
A-Level QuestionShow Answer
Question: A-Level 9: A advanced school physics student studies inertia. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
A-Level QuestionShow Answer
Question: A-Level 10: A advanced school physics student studies balanced forces. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
A-Level QuestionShow Answer
Question: A-Level 11: A advanced school physics student studies seat belts. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
A-Level QuestionShow Answer
Question: A-Level 12: A advanced school physics student studies elevator apparent weight. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
A-Level QuestionShow Answer
Question: A-Level 13: A advanced school physics student studies uniform motion. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
A-Level QuestionShow Answer
Question: A-Level 14: A advanced school physics student studies accelerating bus. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
A-Level QuestionShow Answer
Question: A-Level 15: A advanced school physics student studies turning car. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
A-Level QuestionShow Answer
Question: A-Level 16: A advanced school physics student studies spacecraft inertia. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
A-Level QuestionShow Answer
Question: A-Level 17: A advanced school physics student studies inertia. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
A-Level QuestionShow Answer
Question: A-Level 18: A advanced school physics student studies balanced forces. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
A-Level QuestionShow Answer
Question: A-Level 19: A advanced school physics student studies seat belts. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
A-Level QuestionShow Answer
Question: A-Level 20: A advanced school physics student studies elevator apparent weight. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
A-Level QuestionShow Answer
Question: A-Level 21: A advanced school physics student studies uniform motion. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
A-Level QuestionShow Answer
Question: A-Level 22: A advanced school physics student studies accelerating bus. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
A-Level QuestionShow Answer
Question: A-Level 23: A advanced school physics student studies turning car. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
A-Level QuestionShow Answer
Question: A-Level 24: A advanced school physics student studies spacecraft inertia. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
A-Level QuestionShow Answer
Question: A-Level 25: A advanced school physics student studies inertia. State the relevant first-law idea and explain the observation in one or two physics sentences.
Answer: The key idea is inertia: a body resists change in its state of rest, uniform motion or direction. If the frame accelerates, the observation may be described either from the ground frame using real forces or from the accelerating frame by adding pseudo force opposite to frame acceleration.
Section 15
Assertion Reason
Assertion-ReasonShow Answer
Question: Assertion 1: A body shows inertia depends on mass. Reason: Newton's first law is directly valid only in inertial frames unless pseudo force is introduced in accelerating frames. Choose the correct assertion-reason relation.
Answer: Both statements should be judged by frame selection. In general, the reason correctly explains cases involving accelerating frames; for pure inertia in inertial frames, the first law follows from zero net force.
Assertion-ReasonShow Answer
Question: Assertion 2: A body shows pseudo force direction. Reason: Newton's first law is directly valid only in inertial frames unless pseudo force is introduced in accelerating frames. Choose the correct assertion-reason relation.
Answer: Both statements should be judged by frame selection. In general, the reason correctly explains cases involving accelerating frames; for pure inertia in inertial frames, the first law follows from zero net force.
Assertion-ReasonShow Answer
Question: Assertion 3: A body shows first law and equilibrium. Reason: Newton's first law is directly valid only in inertial frames unless pseudo force is introduced in accelerating frames. Choose the correct assertion-reason relation.
Answer: Both statements should be judged by frame selection. In general, the reason correctly explains cases involving accelerating frames; for pure inertia in inertial frames, the first law follows from zero net force.
Assertion-ReasonShow Answer
Question: Assertion 4: A body shows non-inertial frames. Reason: Newton's first law is directly valid only in inertial frames unless pseudo force is introduced in accelerating frames. Choose the correct assertion-reason relation.
Answer: Both statements should be judged by frame selection. In general, the reason correctly explains cases involving accelerating frames; for pure inertia in inertial frames, the first law follows from zero net force.
Assertion-ReasonShow Answer
Question: Assertion 5: A body shows lift apparent weight. Reason: Newton's first law is directly valid only in inertial frames unless pseudo force is introduced in accelerating frames. Choose the correct assertion-reason relation.
Answer: Both statements should be judged by frame selection. In general, the reason correctly explains cases involving accelerating frames; for pure inertia in inertial frames, the first law follows from zero net force.
Assertion-ReasonShow Answer
Question: Assertion 6: A body shows turning vehicle. Reason: Newton's first law is directly valid only in inertial frames unless pseudo force is introduced in accelerating frames. Choose the correct assertion-reason relation.
Answer: Both statements should be judged by frame selection. In general, the reason correctly explains cases involving accelerating frames; for pure inertia in inertial frames, the first law follows from zero net force.
Assertion-ReasonShow Answer
Question: Assertion 7: A body shows inertia depends on mass. Reason: Newton's first law is directly valid only in inertial frames unless pseudo force is introduced in accelerating frames. Choose the correct assertion-reason relation.
Answer: Both statements should be judged by frame selection. In general, the reason correctly explains cases involving accelerating frames; for pure inertia in inertial frames, the first law follows from zero net force.
Assertion-ReasonShow Answer
Question: Assertion 8: A body shows pseudo force direction. Reason: Newton's first law is directly valid only in inertial frames unless pseudo force is introduced in accelerating frames. Choose the correct assertion-reason relation.
Answer: Both statements should be judged by frame selection. In general, the reason correctly explains cases involving accelerating frames; for pure inertia in inertial frames, the first law follows from zero net force.
Assertion-ReasonShow Answer
Question: Assertion 9: A body shows first law and equilibrium. Reason: Newton's first law is directly valid only in inertial frames unless pseudo force is introduced in accelerating frames. Choose the correct assertion-reason relation.
Answer: Both statements should be judged by frame selection. In general, the reason correctly explains cases involving accelerating frames; for pure inertia in inertial frames, the first law follows from zero net force.
Assertion-ReasonShow Answer
Question: Assertion 10: A body shows non-inertial frames. Reason: Newton's first law is directly valid only in inertial frames unless pseudo force is introduced in accelerating frames. Choose the correct assertion-reason relation.
Answer: Both statements should be judged by frame selection. In general, the reason correctly explains cases involving accelerating frames; for pure inertia in inertial frames, the first law follows from zero net force.
Assertion-ReasonShow Answer
Question: Assertion 11: A body shows lift apparent weight. Reason: Newton's first law is directly valid only in inertial frames unless pseudo force is introduced in accelerating frames. Choose the correct assertion-reason relation.
Answer: Both statements should be judged by frame selection. In general, the reason correctly explains cases involving accelerating frames; for pure inertia in inertial frames, the first law follows from zero net force.
Assertion-ReasonShow Answer
Question: Assertion 12: A body shows turning vehicle. Reason: Newton's first law is directly valid only in inertial frames unless pseudo force is introduced in accelerating frames. Choose the correct assertion-reason relation.
Answer: Both statements should be judged by frame selection. In general, the reason correctly explains cases involving accelerating frames; for pure inertia in inertial frames, the first law follows from zero net force.
Assertion-ReasonShow Answer
Question: Assertion 13: A body shows inertia depends on mass. Reason: Newton's first law is directly valid only in inertial frames unless pseudo force is introduced in accelerating frames. Choose the correct assertion-reason relation.
Answer: Both statements should be judged by frame selection. In general, the reason correctly explains cases involving accelerating frames; for pure inertia in inertial frames, the first law follows from zero net force.
Assertion-ReasonShow Answer
Question: Assertion 14: A body shows pseudo force direction. Reason: Newton's first law is directly valid only in inertial frames unless pseudo force is introduced in accelerating frames. Choose the correct assertion-reason relation.
Answer: Both statements should be judged by frame selection. In general, the reason correctly explains cases involving accelerating frames; for pure inertia in inertial frames, the first law follows from zero net force.
Assertion-ReasonShow Answer
Question: Assertion 15: A body shows first law and equilibrium. Reason: Newton's first law is directly valid only in inertial frames unless pseudo force is introduced in accelerating frames. Choose the correct assertion-reason relation.
Answer: Both statements should be judged by frame selection. In general, the reason correctly explains cases involving accelerating frames; for pure inertia in inertial frames, the first law follows from zero net force.
Assertion-ReasonShow Answer
Question: Assertion 16: A body shows non-inertial frames. Reason: Newton's first law is directly valid only in inertial frames unless pseudo force is introduced in accelerating frames. Choose the correct assertion-reason relation.
Answer: Both statements should be judged by frame selection. In general, the reason correctly explains cases involving accelerating frames; for pure inertia in inertial frames, the first law follows from zero net force.
Assertion-ReasonShow Answer
Question: Assertion 17: A body shows lift apparent weight. Reason: Newton's first law is directly valid only in inertial frames unless pseudo force is introduced in accelerating frames. Choose the correct assertion-reason relation.
Answer: Both statements should be judged by frame selection. In general, the reason correctly explains cases involving accelerating frames; for pure inertia in inertial frames, the first law follows from zero net force.
Assertion-ReasonShow Answer
Question: Assertion 18: A body shows turning vehicle. Reason: Newton's first law is directly valid only in inertial frames unless pseudo force is introduced in accelerating frames. Choose the correct assertion-reason relation.
Answer: Both statements should be judged by frame selection. In general, the reason correctly explains cases involving accelerating frames; for pure inertia in inertial frames, the first law follows from zero net force.
Assertion-ReasonShow Answer
Question: Assertion 19: A body shows inertia depends on mass. Reason: Newton's first law is directly valid only in inertial frames unless pseudo force is introduced in accelerating frames. Choose the correct assertion-reason relation.
Answer: Both statements should be judged by frame selection. In general, the reason correctly explains cases involving accelerating frames; for pure inertia in inertial frames, the first law follows from zero net force.
Assertion-ReasonShow Answer
Question: Assertion 20: A body shows pseudo force direction. Reason: Newton's first law is directly valid only in inertial frames unless pseudo force is introduced in accelerating frames. Choose the correct assertion-reason relation.
Answer: Both statements should be judged by frame selection. In general, the reason correctly explains cases involving accelerating frames; for pure inertia in inertial frames, the first law follows from zero net force.
Assertion-ReasonShow Answer
Question: Assertion 21: A body shows first law and equilibrium. Reason: Newton's first law is directly valid only in inertial frames unless pseudo force is introduced in accelerating frames. Choose the correct assertion-reason relation.
Answer: Both statements should be judged by frame selection. In general, the reason correctly explains cases involving accelerating frames; for pure inertia in inertial frames, the first law follows from zero net force.
Assertion-ReasonShow Answer
Question: Assertion 22: A body shows non-inertial frames. Reason: Newton's first law is directly valid only in inertial frames unless pseudo force is introduced in accelerating frames. Choose the correct assertion-reason relation.
Answer: Both statements should be judged by frame selection. In general, the reason correctly explains cases involving accelerating frames; for pure inertia in inertial frames, the first law follows from zero net force.
Assertion-ReasonShow Answer
Question: Assertion 23: A body shows lift apparent weight. Reason: Newton's first law is directly valid only in inertial frames unless pseudo force is introduced in accelerating frames. Choose the correct assertion-reason relation.
Answer: Both statements should be judged by frame selection. In general, the reason correctly explains cases involving accelerating frames; for pure inertia in inertial frames, the first law follows from zero net force.
Assertion-ReasonShow Answer
Question: Assertion 24: A body shows turning vehicle. Reason: Newton's first law is directly valid only in inertial frames unless pseudo force is introduced in accelerating frames. Choose the correct assertion-reason relation.
Answer: Both statements should be judged by frame selection. In general, the reason correctly explains cases involving accelerating frames; for pure inertia in inertial frames, the first law follows from zero net force.
Assertion-ReasonShow Answer
Question: Assertion 25: A body shows inertia depends on mass. Reason: Newton's first law is directly valid only in inertial frames unless pseudo force is introduced in accelerating frames. Choose the correct assertion-reason relation.
Answer: Both statements should be judged by frame selection. In general, the reason correctly explains cases involving accelerating frames; for pure inertia in inertial frames, the first law follows from zero net force.
Assertion-ReasonShow Answer
Question: Assertion 26: A body shows pseudo force direction. Reason: Newton's first law is directly valid only in inertial frames unless pseudo force is introduced in accelerating frames. Choose the correct assertion-reason relation.
Answer: Both statements should be judged by frame selection. In general, the reason correctly explains cases involving accelerating frames; for pure inertia in inertial frames, the first law follows from zero net force.
Assertion-ReasonShow Answer
Question: Assertion 27: A body shows first law and equilibrium. Reason: Newton's first law is directly valid only in inertial frames unless pseudo force is introduced in accelerating frames. Choose the correct assertion-reason relation.
Answer: Both statements should be judged by frame selection. In general, the reason correctly explains cases involving accelerating frames; for pure inertia in inertial frames, the first law follows from zero net force.
Assertion-ReasonShow Answer
Question: Assertion 28: A body shows non-inertial frames. Reason: Newton's first law is directly valid only in inertial frames unless pseudo force is introduced in accelerating frames. Choose the correct assertion-reason relation.
Answer: Both statements should be judged by frame selection. In general, the reason correctly explains cases involving accelerating frames; for pure inertia in inertial frames, the first law follows from zero net force.
Assertion-ReasonShow Answer
Question: Assertion 29: A body shows lift apparent weight. Reason: Newton's first law is directly valid only in inertial frames unless pseudo force is introduced in accelerating frames. Choose the correct assertion-reason relation.
Answer: Both statements should be judged by frame selection. In general, the reason correctly explains cases involving accelerating frames; for pure inertia in inertial frames, the first law follows from zero net force.
Assertion-ReasonShow Answer
Question: Assertion 30: A body shows turning vehicle. Reason: Newton's first law is directly valid only in inertial frames unless pseudo force is introduced in accelerating frames. Choose the correct assertion-reason relation.
Answer: Both statements should be judged by frame selection. In general, the reason correctly explains cases involving accelerating frames; for pure inertia in inertial frames, the first law follows from zero net force.
Section 16
Case Study Questions
Accelerating train
Accelerating train situations test whether the student can identify the frame, list real forces, and decide if pseudo force is needed.
Case StudyShow Answer
Question: Case 1: In the accelerating train situation, identify the inertial/non-inertial frame and predict the apparent motion of the passenger or object.
Answer: Choose the ground frame for real-force analysis. If you choose the accelerating vehicle/lift frame, add pseudo force opposite to frame acceleration, then apply equilibrium or Newton's second law normally.
Elevator
Elevator situations test whether the student can identify the frame, list real forces, and decide if pseudo force is needed.
Case StudyShow Answer
Question: Case 2: In the elevator situation, identify the inertial/non-inertial frame and predict the apparent motion of the passenger or object.
Answer: Choose the ground frame for real-force analysis. If you choose the accelerating vehicle/lift frame, add pseudo force opposite to frame acceleration, then apply equilibrium or Newton's second law normally.
Bus turning
Bus turning situations test whether the student can identify the frame, list real forces, and decide if pseudo force is needed.
Case StudyShow Answer
Question: Case 3: In the bus turning situation, identify the inertial/non-inertial frame and predict the apparent motion of the passenger or object.
Answer: Choose the ground frame for real-force analysis. If you choose the accelerating vehicle/lift frame, add pseudo force opposite to frame acceleration, then apply equilibrium or Newton's second law normally.
Passenger safety
Passenger safety situations test whether the student can identify the frame, list real forces, and decide if pseudo force is needed.
Case StudyShow Answer
Question: Case 4: In the passenger safety situation, identify the inertial/non-inertial frame and predict the apparent motion of the passenger or object.
Answer: Choose the ground frame for real-force analysis. If you choose the accelerating vehicle/lift frame, add pseudo force opposite to frame acceleration, then apply equilibrium or Newton's second law normally.
Space travel
Space travel situations test whether the student can identify the frame, list real forces, and decide if pseudo force is needed.
Case StudyShow Answer
Question: Case 5: In the space travel situation, identify the inertial/non-inertial frame and predict the apparent motion of the passenger or object.
Answer: Choose the ground frame for real-force analysis. If you choose the accelerating vehicle/lift frame, add pseudo force opposite to frame acceleration, then apply equilibrium or Newton's second law normally.
