, 02.12.2019 19:30 majakvcvc77

Aball is thrown upward from the top of a building 160 ft high with an initial velocity of 64 ft/sec. its height in feet above the ground is given by s(t)=−16t2+64t+160 where t is in seconds. a) when does the ball reach its maximum height? b) what is its maximum height? c) when does it hit the ground? d) with what velocity does it hit the ground? e) what was its acceleration at time t=1?

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