Dynamics Multiple Choice Questions (MCQ) PDF - 16

MCQ 76: When donkey pulls a cart, the action is on the

1. cart
2. donkey
3. earth
4. earth and cart

MCQ 77: A force acting on a body of mass 7 kg produces an acceleration of 10 ms⁻². The acceleration that the same force will produce in a body of mass 9 kg will be

1. 5 ms⁻²
2. 6 ms⁻²
3. 6.5 ms⁻²
4. 7.7 ms⁻²

MCQ 78: The body jumps out of a moving van. There is a danger for him to fall in

1. towards the moving van
2. away from the van
3. direction of motion
4. under the van

MCQ 79: Two masses 4.5 kg and 3.8 kg are attached to the ends of an inextensible string passes over a frictionless pulley. Its acceleration when both masses are moving vertically will be equal to

1. 0.8 ms⁻²
2. 0.5 ms⁻²
3. 2 ms⁻²
4. 1.5 ms⁻²

MCQ 80: When a force acts on a body, it produces an acceleration in the body and will be equal to the rate of change of

1. velocity of the body
2. displacement of the body
3. inertia of the body
4. momentum of the body