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OpenStudy (anonymous):
3. A model rocket is launched from the ground with an initial velocity of 352 ft/sec. How long will it take the rocket to reach its maximum height? Show all work in the space provided.
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OpenStudy (anonymous):
@welsh please help me!
OpenStudy (misssunshinexxoxo):
Formula vf = vi + a*t
OpenStudy (misssunshinexxoxo):
At the top of its trajectory, an object will have vf = 0 m/s. 352 feet converts to 107.3 meters, and the acceleration of gravity acting on an object is -9.8 m/s/s. Armed with that knowledge, you simply plug what you know into the equation: 0 = 107.3 + -9.8*t t = 10.9 seconds
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