physics
posted by wow .
Stephanie serves a volleyball from a height of 0.76 m and gives it an initial velocity of +7.2m/s straight up.How high will the volleyball go? The acceleration of gravity is 9.81 m/s2.
Answer in units of m.
2) How long will it take the ball to reach its maximum height? Answer in units of s.

vi^2=mgh where h is the height above .76m, so add that to h.
how long? when you find the h(before you add)
h=vi*t4.9t^2 solve for t. 
52.6

1.88
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