PHYSICS A toy rocket is fired upward from the top of a 200-foot tower at a velocity of
Chapter 7, Problem 71(choose chapter or problem)
PHYSICS A toy rocket is fired upward from the top of a 200-foot tower at a velocity of 80 feet per second. The height of the rocket t seconds after firing is given by the formula h(t) = -16 t 2 + 80t + 200. Find the time at which the rocket reaches its maximum height of 300 feet.
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