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Asked by Kylie

DeSean throws a ball up with an initial vertical velocity of 30 feet per second from a platform that is at ground level. How long will the ball be in the air?
11 years ago

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Answered by bobpursley
h=ho+vi*t-4.9t^2
h=ho=0

0=vi*t-4.9t^2= t(vi-4.9t)

t= 30/4.9 m/s
11 years ago
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