What is its time interval between the release

of the ball and the time it reaches its

maximum height? The acceleration of gravity

is 9.8 m/s

2

and the maximum height is 3.8 m.

There are several many equations that are available to relate the distance,

speed, and time of a body moving vertically in gravity. Happily, the only one

I can always remember without looking it up happens to be the right one to

use for this question!

Distance = (1/2) x (gravity) x (time) ²

3.8 m = (1/2) x (9.8 m/s²) x (time) ²

Divide each side

by 4.9 m/s²:

(3.8 m) / (4.9 m/sec²) = (time) ²

0.7755 sec² = time²

Square root

of each side:

0.88 second = time