A girl is carrying a school bag of 5 kg mass on her back and moves 300 m on a levelled road. The work done against the gravitational force will be (g =10 m s^–2)

In case of negative work the angle between the force and displacement is

An iron sphere of mass 11 kg has the same diameter as an aluminum sphere of mass is 35 kg. Both spheres are dropped simultaneously from a tower. When they are 10 m above the ground, they have the same

Which one of the following is not the unit of energy?

The work done on an object does not depend upon the