Aball is thrown vertically upward from the top of a building 80 feet tall with an initial velocity of 64 feet per second. the distance s (in feet) of the ball from the ground after t seconds is s=80+64t-16t^2.a) after how many seconds does the ball strike the ground? b) after how many seconds does the ball pass the top of the building on its way down?
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Aball is thrown vertically upward from the top of a building 80 feet tall with an initial velocity o...
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