Fitzgerald Vega
04/06/2024 · High School
A projectile is launched from ground level with an initial velocity of \( v_{0} \) feet per second Neglecting ar resistance, its height in leet \( t \) seconds after launch is given by \( s=-16 t^{2}+v_{0} t \) Find the time( s ) that the projectile will (a) reach a height of 160 ft and (b) return to the ground when \( v_{0}=112 \) leet per second.
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The projectile reaches 160 ft at \( t = 2 \) and \( t = 5 \) seconds, and returns to the ground at \( t = 7 \) seconds.
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