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Mathematics, 08.10.2019 19:30 coleman4405

Aprojectile is launched from ground level with an initial velocity of v0 feet per second. neglecting air resistance, its height in feet t seconds after launch is given by s=-16t2+v0t. find the time(s) that the projectile will (a) reach a height of 288 ft and (b) return to the ground when v0=144 feet per second.

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