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A ball is launched into the sky at 19.6 feet per second from a 58.8 meter tall building.The equation for the ball's height, h, at

A ball is launched into the sky at 19.6 feet per second from a 58.8 meter tall building.The equation for the ball's height, h, at time t seconds ish = -4.9t2+ 19.6t + 58.8.When will the ball strike the ground?

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