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*33.75=25.31 for the speed
Or I need to use some kind of formula? Please help me.