Someone wants to sell you a super ball claims that it will bounce to a height greater than the height from which it is dropped. Would you buy this ball ? If yes explain, if not explain

Why does rubber ball bounce greater heights on hills than

A ball of mass m is dropped onto a floor from a certain height. The collision is perfectly elastic and the ball rebounds to the same height and again falls. Find the average force exerted by the ball on the floor during a long time interval.

A ball is dropped from a height. If it takes 0.2s to cross the last 6m before hitting the ground, find the height from which it is dropped. Take g = 10 m/ /s^(2) (AS_(1))

A circket ball falls from a height of 40 m. What is the velocity with which the ball hits the ground ?

Two satellites are at different heights from the surface of earth. Which would have greater velocity?

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 kinetic energy ?