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anonymous

  • one year ago

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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  1. anonymous
    • one year ago
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    @welsh please help me!

  2. misssunshinexxoxo
    • one year ago
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    Formula vf = vi + a*t

  3. misssunshinexxoxo
    • one year ago
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    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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