There is a ball of mass 320 g. It has 625 J potential energy when released freely from a height. The speed with which it will hit the ground is

If an object of mass 10 kg is moving with a uniform speed of 10 m/s, then the linear momentum and the kinetic energy of the object, respectively, are

An object of mass 2000 g possesses 100 J kinetic energy. The object must be moving with a speed of

A ball is thrown vertically upward with a speed of 40 m/s. The time taken by the ball to reach the maximum height would be approximately

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 :

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):