SOLUTION: You drop a rock from 128ft (top of building) it falls at a rate of 32 feet per second. How long will it take to hit the ground?

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Question 286723: You drop a rock from 128ft (top of building) it falls at a rate of 32 feet per second. How long will it take to hit the ground?
Answer by nyc_function(2741) About Me  (Show Source):
You can put this solution on YOUR website!
Here is your equation:
h = -16t^2 - 32t + 128
Let h = 0 and solve for t
I suggest using the quadratic formula to find t, where t = time it will take the rock to hit the ground.