A ball at rest is dropped from a height of 12m. It loses 25% of its kinetic energy in striking the ground , find the height to which it bounces. How do you account for the loss in kineticenergy ?

A ball at rest is dropped from a height of 12m. It loses 25% of its ki

1.	A ball at rest is dropped from a height of 12m. It loses 25% of its kinetic energy in striking the ground , find the height to which it bounces. How do you account for the loss in kineticenergy ?
Answer» Answer :If BALL BOUNCES to height H', then `mgh'=75%"of" mgh` h'=0.75h=9m`