An object of mass 2 kg is sliding with a constant velocity of 4 m/s on a frictionless horizontal table. The force required to keep this object moving with the same velocity is:

A. 32 N B. 0 N

C. 2 N D. 8 N

An unloaded truck weighing 2000 kg has a maximum acceleration of 0.5 m/s2. What is the maximum acceleration when it is carrying a load of 2000 kg?

The rocket work on the principle of conservation of:

A. Mass B. Energy

C. Momentum D. Velocity

The physical quantity which makes it easier to accelerate a small car than a large is measures in the unit of:

A. m/s B. kg

C. kg m/s D. kg m/s²

According to the third law of motion, action and reaction:

A. Always act on the same body but in opposite directions

B. Always act on different bodies in opposite directions

C. Have same magnitudes and directions

D. Act on either body at normal to each other