SOLUTION: I stand on a building 640 feet high and throw a rock into the air with a velocity of 96ft/sec. When does the rock have a height of 100 feet?

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Question 763002: I stand on a building 640 feet high and throw a rock into the air with a velocity of 96ft/sec. When does the rock have a height of 100 feet?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
I stand on a building 640 feet high and throw a rock into the air with a velocity of 96ft/sec. When does the rock have a height of 100 feet?
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You have to supply the function of height vs. time.