Ch projectile is launched from ground level with an initial velocity of vo feet per second. Neglecting at resistance, its height in frett seconds after launch is given by s=-167 +vot Find the times) that the projectle will (a) reach a height of 80 ft and (b) return to the ground when to = 96 feet per second
(a) Find the times) that the projectile will reach a height of 20 ft when yo = 5 feet per second Select the correct choice belou and I necessary. Fil in the answer
box to complete your choice
A 14 seconds (Use a comma to separate answers as needed)
OB. The projectile does not reach 20 feet