Several games such as billiards, marbles or carrom involve collisions. A ball at rest is dropped from a height of 12 m . It loses 25% of its kinetic energy on striking the ground. Find the height to which it bounces.

Several games such as billiards, marbles or carrom involve collisions.

1.	Several games such as billiards, marbles or carrom involve collisions. A ball at rest is dropped from a height of 12 m . It loses 25% of its kinetic energy on striking the ground. Find the height to which it bounces.
Answer» SOLUTION :`75/100xxmgh_1 = mgh_2` `h_2 = 0.75h_1 = 0.75xx12=9m`