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=−16t2+v0t. Find the time(s) that the projectile will (a) reach a height of 192 ft and (b) return to the ground when v0=112 feet per second. Question content area bottom
(a) Find the time(s) that the projectile will reach a height of 192 ft when v0=112 feet per second. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. 1 comma 81, 8 seconds (Use a comma to separate answers as needed.)
B. The projectile does not reach 192 feet.
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