Physics, 04.11.2019 15:31 marwaalsaidi

Aball is kicked into the air at time t = 0. while the ball is in the air, its height above the ground after t seconds is -16t^2 + 40t feet. how many seconds after the ball is kicked will it hit the ground?

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Aball is kicked into the air at time t = 0. while the ball is in the air, its height above the groun...