The velocity-time graph of a ball moving on a horizontal surface is shown in the diagrm. The mass of the ball is 30 g. Calculate the force acting on the ball.

The position-time graph of an object moving in a straight line is shown below. The object has zero velocity at point

A spherical ball rolls on a horizontal surface without slipping .then the fraction of its total energy associated with rotatio is :

A ball of mass 100 g moving with a velocity of 10ms^-1 is stopped by a boy in 0.25sec. Calculate the force applied by the boy to stop the ball.

A body moves with constant velocity of 20 ms^-1 . The mass of body is 2 kg. The unbalanced force acting on the body is _________.

Two identical ball bearing in contact with each other and resting on a frictionless table are hit head on by another ball bearing of the same mass moving initially with a speed V shown in the figure. If the collision is elastic, which of the folloiwng shown in the figure is a possible result after collision ?

A small cork ball with a mass 0.58 g is suspended from a thread 10 cm long. Another ball is fixed at a distance 10 cm from the point of suspension and at a distance of 5 cm from the thread as shown in the figure What shoud the magnitude of the like and equal charges on the balls be t deflect the thread through 30^@ ?