Calculate Height of Basketball Player's Jump

[zelda1850]

Homework Statement

a basketball player jumped straight up to grab a rebound. if she was in the air for 0.80 second how high did she jump?

Homework Equations

i know the time but i don't know which equation to use

The Attempt at a Solution

i don't know how to solve yet

 

[payumooli]

0.8 = time to go up(t1) + time to come down(t2)

t1 = t2 = 0.8/2 (should be right)

vertical distance traversed use equation of motion

s = ut + 0.5at^2

can you go on from here?

 

[CompuChip]

Try s = 0.5 a t², where a is the acceleration.
Given the time and acceleration (what is it?) you can find the largest distance (which is the top of her jump).