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Physics 16 Online
OpenStudy (alliekat):

the equation for a projectiles height versus time is h(t)=-16t^2+vot+ho A tennis ball machine serves a ball vertically into the air from a height of two feet, with an initial speed of 120 feet per second. After how many seconds does the ball attain its maximum height? Round to the nearest hundredth.

OpenStudy (gunsodo):

Hint : Simplify to standard parabola form

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