Mathematics, 08.12.2020 20:40, vanessabeausoleil

A projectile 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= - 161? + vot. Find the time(s) that the projectile will (a) reach a height of 400 ft and (b) return to the ground when vo is 128 feet per second.
(a) Find the time(s) that the projectile will reach a height of 400 ft when Vo = 128 feet per second.

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A projectile is launched from ground level with an initial velocity of V0 feet per second. Neglectin...