Two identical solid balls, one of ivory and the other of wet-clay, are dropped from the same height on the floor. Which one will rise to a greater height after striking the flood and why?
Both balls are dropped from the same height. This means the velocity with which they approach and strike the ground will be same. But the ivory ball is more elastic in nature than the wet clay ball, so it tries to get back to its original form as quickly as possible as compared to the wet clay ball. Hence, the amount energy transferred to the ivory ball is higher than that of clay ball and as a result it rises higher.