A projectile is launched from ground level with an initial velocity of v 0 feet per second Neglecting air resistance, its height in feet t seconds after launch is given by s 16t 2 v 0 t find the time(s) that the projectile will (a) reach a height of 80 ft and (b) return to the ground for the given value of v 0 Round answers to the nearest hundredth if necessary v 0 128

Question: A projectile is launched from ground level with an initial velocity of v 0 feet per second. Neglecting air resistance, its height in feet t

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 80 ft and (b) return to the ground for the given value of v₀. Round answers to the nearest hundredth if necessary.

v₀ = 128

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