Question 41 : The direction of torque is?
1. None of these.
2. The same as the direction of the corresponding applied force.
3. Opposite to the direction of the applied force
4. Perpendicular to the direction of the applied force.
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Question 42 : A body in equilibrium?
1. is always at rest
2. can move with constant velocity
3. can move with variable acceleration
4. can move with constant acceleration
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Question 43 : In the system international, the unit of angular momentum is?
1. N-m
2. N.s
3. J.s
4. Kg. s
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Question 44 : Two forces which cannot be replaced by a single equivalent force are said to form?
1. a couple
2. a bond
3. None of these.
4. a pair
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Question 45 : Every point on a rotating body has the same?
1. Angular velocity.
2. None of these.
3. Linear velocity.
4. Linear momentum.
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Question 46 : The angular momentum of the body is conserved if the net external torque on it is?
1. Unity
2. Zero
3. Minimum
4. Maximum
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Question 47 : A body is said to be in translational equilibrium if the net force on it is?
1. Maximum
2. Zero
3. Unity
4. Minimum
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Question 48 : The two forces which form a couple?
1. can be replaced by a single equivalent force.
2. cannot be replaced by a single equivalent force.
3. None of these.
4. are perpendicular to each other.
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Question 49 : The physical quantity which tends to rotate a body is called?
1. Angular displacement.
2. Torque
3. Angular velocity.
4. Angular momentum.
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Question 50 : A body possesses angular velocity and angular momentum when it is in?
1. Motion under gravity.
2. None of these.
3. Rotatory motion.
4. Translatory motion.
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