The momentum of a bullet of mass 20 g fired from a gun is 10 kg m/s. The kinetic energy of this bullet in kJ will be:

A. 5 B. 1.5

C. 2.5 D. 25

The work done on an object does not depend on the:

A. Displacement

B. Angle between force and displacement

C. Force applied

D. Initial velocity of the object

Water stored in a dam possesses:

A. No energy

B. Electrical energy

C. Kinetic energy

D. Potential energy

Each of the following statement describes a force - acting. Which force is causing work to be done?

A. The weight of a book at rest on a table

B. The pull of a moving railway engine on its coaches

C. The tension in an elastic band wrapped around a parcel

D. The push of a person’s feet when standing on the floor

A girl weighing 400 N climbs a vertical ladder. If the value of g be 10 m s^-2, the work done by her after climbing 2 m will be:

A. 200 J B. 800 J

C. 8000 J D. 2000 J