A) A tennis ball is dropped from 1.51 m above the ground. It rebounds to a height of 0.822 m.
With what velocity does it hit the ground? The acceleration of gravity is 9.8 m/s2 . (Let down be negative.) Answer in units of m/s.
B) With what velocity does it leave the ground? Answer in units of m/s.
C) If the tennis ball were in contact with the ground for 0.00985 s, find the acceleration given to the tennis ball by the ground.