# Math

posted by
**Zach** on
.

A rubber ball is thrown straight down from a height of 244 feet at speed of 80 feet per second. If the ball always rebounds with one-fourth of its impact speed, what will be the speed of the ball the third time it hits the ground?

My Answer is:

1/4*80=60

1/4*60=45

1/4*45=33.75

1/4*33.75=25.31 for the speed

Or I need to use some kind of formula? Please help me.