Given below are two statements:

 Assertion (A): Angular momentum of an isolated system of particles is conserved. Reason (R): The net torque on an isolated system of particles is zero and the rate of change of angular momentum equals the torque.

 1 Both (A) and (R) are True and (R) is the correct explanation of (A). 2 Both (A) and (R) are True but (R) is not the correct explanation of (A). 3 (A) is True but (R) is False. 4 (A) is False but (R) is True.
Subtopic: Â Torque |
Â 80%
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Given below are two statements:
 Assertion (A): A ladder is more apt to slip when you are high up on it than when you just begin to climb. Reason (R): At high up on a ladder, the torque is large and on climbing up, the torque is small.

 1 Both (A) and (R) are True and (R) is the correct explanation of (A). 2 Both (A) and (R) are True but (R) is not the correct explanation of (A). 3 (A) is True but (R) is False. 4 Both (A) and (R) are False.
Subtopic: Â Torque |
Â 80%
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Given below are two statements:
 Assertion (A): If there is no external torque on a body about its centre of mass, then the velocity of the centre of mass remains constant. Reason (R): The linear momentum of an isolated system remains constant.

 1 Both (A) and (R) are True and (R) is the correct explanation of (A). 2 Both (A) and (R) are True but (R) is not the correct explanation of (A). 3 (A) is True but (R) is False. 4 (A) is False but (R) is True.
Subtopic: Â Torque |
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Given below are two statements:
 Assertion (A): The speed of a whirlwind in a tornado is alarmingly high. Reason (R): If no external torque acts on a body, its angular velocity remains conserved.

 1 Both (A) and (R) are true and (R) is the correct explanation of (A). 2 Both (A) and (R) are true but (R) is not the correct explanation of (A). 3 (A) is true but (R) is false. 4 Both (A) and (R) are false.
Subtopic: Â Torque |
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Given below are two statements:
 Assertion (A): A judo fighter in order to throw his opponent onto the mat tries to initially bend his opponent and then rotate him around his hip. Reason (R): As the mass of the opponent is brought closer to the fighter's hip, the force required to throw the opponent is reduced.

 1 Both (A) and (R) are true and (R) is the correct explanation of (A). 2 Both (A) and (R) are true but (R) is not the correct explanation of (A). 3 (A) is true but (R) is false. 4 Both (A) and (R) are false.
Subtopic: Â Torque |
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Given below are two statements:
 Assertion (A): For the body to be in rotational equilibrium, the net torque acting on the body about any point is zero. Reason (R): For net torque to be zero, net force should also be zero.

 1 Both (A) and (R) are True and (R) is the correct explanation of (A). 2 Both (A) and (R) are True but (R) is not the correct explanation of (A). 3 (A) is True but (R) is False. 4 Both (A) and (R) are False.
Subtopic: Â Torque |
Â 70%
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