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Mathematics 7 Online
OpenStudy (anonymous):

Use the position function s(t)=-16t^2+vOt+sO vO=initial velocity sO=initial position t=time to answer the following question. You throw a ball straight up from a rooftop 152 feet high with an initial velocity of 64 feet per second. During which time period will the ball's height exceed that of the rooftop? ANSWER: Between and seconds.

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