A batsman hits a cricket ball which them rolls on a level ground. After covering a short distance! the ball comes to rest. The ball slows to a stop be cause

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

Two solid subber balls A and B having masses 0.2 and 0.4 are moving in opposite directions with velocity of A equal to 0.3 ms^-1 After collission, the two balls come to rest when the velocity of B is

A ball is dropped from top of 40m high tower. What will be its velocity after covering a distance of 20m ? What will be its velocity on striking the earth ?

The distance between two equal balls having unlike charges is 2cm. The radii of the balls are much less than the distance between them. The balls attract each other with a force of 36xx10^(-5) N. After the ball have been connected by a wire and latter has been removed, the balls repel each other with a force of 20. 25xx10^(-5)N. Determine the original charges on the balls