Work done by centripetal force is always:
A body of mass 5 kg is moving with a momentum of 10 kgm/s. A force of 0.2 N acts on it in the direction of motion of the body for 10 seconds. The increase in kinetic energy is:
The kinetic energy of a light and a heavy object is same. Which object has maximum momentum?
Two bodies of mass 1 kg and 2 kg have equal momentum. Then ratio of their kinetic energies is:
A body fallen from height h. After it has fallen a height h/2, its will possess:
Which of the following quantity can be calculated by multiplying force and velocity?
The minimum velocity given to an object so that it emerges out from the gravitational field of earth is about:
When one joule of work is done on a body in one second, power of body is said to be:
The absolute potential energy of an object depends on:
The escape velocity of a planet depends on which of the following factors?
