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If an object is propelled upward from a height of 96 feet at an initial velocity of 80 feet per second, then its height after t seconds is given by

If an object is propelled upward from a height of 96 feet at an initial velocity of 80 feet per second, then its height after t seconds is given by the equation h = -16t2 + 80t + 96 where h is in feet. After how many seconds will the object reach a height of 196 feet?

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