Posted by Gina on .
If a ball is dropped from from 288 ft above the ground, how long does it take to reach ground level?

math 
MathMate,
The distance S for a free falling object from rest over t seconds is:
S=(1/2)gt²
where
g=9.8 m.s^{2}
S=288m
Solve for t.
solve for t. 
math 
Quidditch,
Be cautious about units on this problem. The problem gives the distance in feet. Gravitational acceleration in English units is about 32 ft/sec^2 .

math 
MathMate,
Oops. Use g=32.2 f s^{2}
Thanks Qudditch.