SOLUTION: when a object is projected upward with velocity 100m/s then when it will hit on the ground?

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Question 759805: when a object is projected upward with velocity 100m/s then when it will hit on the ground?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
when a object is projected upward with velocity 100m/s then when it will hit on the ground?
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h(t) = -16t^2 + 100t
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h is 0 when the object hits the ground:
Solve:
-16t^2+100t = 0
t(-16t+100) = 0
t = 0 or t = 100/16 = 6.25 seconds
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Cheers,
Stan H.
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