Given below are two statements:
Statement I: (Newton's 1st Law of Motion) Everybody continues in its state of rest or of uniform motion in a straight line except in so far as it be compelled by an externally impressed force to act otherwise.
Statement II: It is observed that when a car brakes suddenly, the passengers are thrown forward.
 
1. Statement I is True, Statement II is True, and Statement I is the correct explanation of Statement II.
2. Statement I is True, Statement II is True, and Statement I is not the correct explanation of Statement II.
3. Statement I is True, Statement II is False.
4. Statement I is False, Statement II is True.
Subtopic:  Newton's Laws |
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Given below are two statements:
Assertion (A): A standing bus suddenly accelerates. If there was no friction between the feet of a passenger and the floor of the bus, the passenger would move back.
Reason (R): In the absence of friction, the floor of the bus would slip forward under the feet of the passenger.
 
1. (A) is True but (R) is False.
2. (A) is False but (R) is True.
3. Both (A) and (R) are True and (R) is the correct explanation of (A).
4. Both (A) and (R) are True but (R) is not the correct explanation of (A).
Subtopic:  Newton's Laws |
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NEET - 2022
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A ball is traveling with uniform translatory motion. This means that:

1. it is at rest.
2. the path can be a straight line or circular and the ball travels with uniform speed.
3. all parts of the ball have the same velocity (magnitude and direction) and the velocity is constant.
4. the center of the ball moves with constant velocity and the ball spins about its center uniformly.

Subtopic:  Newton's Laws |
 64%
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An astronaut accidentally gets separated out of his small spaceship, accelerating in interstellar space at a constant rate of \(100~\text{m/s}^2\). What is the acceleration of the astronaut the instant after he is outside the spaceship? (Assume that there are no nearby stars to exert gravitational force on him.)
1. \(0~\text{m/s}^2\)
2.\(100~\text{m/s}^2\)
3.\(10~\text{m/s}^2\)
4.\(1000~\text{m/s}^2\)

Subtopic:  Newton's Laws |
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A football player is moving southward and suddenly turns eastward with the same speed to avoid an opponent. The force that acts on the player while turning is:
1. along south-west 2. along eastward
3. along northward 4. along north-east
Subtopic:  Newton's Laws |
 53%
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NEET - 2023
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A trolley of mass \(300\) kg carrying a sandbag of \(25\) kg is moving uniformly with a speed of \(27\) km/h on a frictionless track. After a while, the sand starts leaking out of a hole on the floor of the trolley at the rate of \(0.05\) kgs–1. What is the speed of the trolley after the entire sandbag is empty?

1. \(27\) km/h 2. \(7.7\) km/h
3. \(20\) km/h 4. \(19.6\) km/h
Subtopic:  Newton's Laws |
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A hockey player is moving northward and suddenly turns westward at the same speed to avoid an opponent. The force that acts on the player is:

1. frictional force along westward
2. muscle force along southward
3. frictional force along south-West
4. muscle force a south-West

Subtopic:  Newton's Laws | Application of Laws |
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A boy pushes a box of mass \(2\) kg with a force \(\vec{F} = (20 \hat{i} + 10 \hat{j} )\text{N}\) on a frictionless surface. If the box was initially at rest, then displacement along the \(x\text-\)axis after \(10\) s is:

1. \(250\) m 2. \(400\)
3. \(500\) m 4. \(750\) m
Subtopic:  Newton's Laws |
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A \(1\) kg object strikes a wall with velocity \(1\) ms–1 at an angle of \(60^\circ\) with the wall and reflects at the same angle. If it remains in contact with the wall for \(0.1\) s, then the force exerted on the wall is:
1. \(30\sqrt3~\text N\)
2. zero
3. \(10\sqrt3~\text N\)
4. \(20\sqrt3~\text N\)
Subtopic:  Newton's Laws |
 80%
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NEET - 2023
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A car of mass \(m\) starts from rest and acquires a velocity along the east, \(v=v\mathrm{\hat{i}}(v>0)\) in two seconds. Assuming the car moves with uniform acceleration, the force exerted on the car is:

1. \(mv/2 \) eastward and is exerted by the car engine.
2. \(mv/2\) eastward and is due to the friction on the tires exerted by the road.
3. more than \(mv/2\) eastward exerted due to the engine and overcomes the friction of the road.
4. \(mv/2\) exerted by the engine.

Subtopic:  Newton's Laws | Application of Laws |
 55%
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