Ball bearings are used to convert static friction into

A batsman hits a cricket ball which then rolls on a level ground. After covering a short distance, the ball comes to rest. The ball slows to a stop because

A person of mass 60 kg is standing on a spring balance inside a lift. If the lift falls freely downwards, then the reading of the spring balance will be equal to :

Which one of the following equations related to the motion of an object is NOT correct? (Symbols carry their usual meanings)

The energy possessed by a body due to its change in position or shape is called

A ball thrown up is caught by the thrower 6 sec after start. The height to which the ball has risen is (g = 10 m/s²):