SOLUTION: A pine cone falls from the top of a 64-foot pine tree. How long will it take (in seconds) for the pine cone to reach the ground? Use the equation h = -16t^2 + 64 where h is the he

Question 149426: A pine cone falls from the top of a 64-foot pine tree. How long will it take (in seconds) for the pine cone to reach the ground?
Use the equation h = -16t^2 + 64 where h is the height (in feet) above the ground t seconds after it falls from the tree.
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
A pine cone falls from the top of a 64-foot pine tree. How long will it take (in seconds) for the pine cone to reach the ground?
Use the equation h = -16t^2 + 64 where h is the height (in feet) above the ground t seconds after it falls from the tree.
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h = -16t^2 + 64 = 0 (0 when it hits the ground)
16t^2 = 64
t^2 = 4
t = 2 seconds
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