Question

A tennis ball is dropped from 1.98 m above
the ground. It rebounds to a height of 1.05 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
Confused please help.

Answer 1

v = -sqrt(2*9.8*1.98)