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Question 438843: a ball is dropped off a 576 foot building,its height,h, in feet is given by the equation h=-16tsquare + 576 where t is seconds after it was dropped. how long will it take the ball to reach the ground?
Answer by nerdybill(7384)   (Show Source):
You can put this solution on YOUR website! a ball is dropped off a 576 foot building,its height,h, in feet is given by the equation h=-16tsquare + 576 where t is seconds after it was dropped. how long will it take the ball to reach the ground?
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Since h represents the height and the ground is 0 ft off the ground, we set h to zero and solve for t:
h = -16t^2 + 576
0 = -16t^2 + 576
-576 = -16t^2
36 = t^2
6 secs = t
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