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March 24, 2017

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A model rocket is launched straight upward with an initial speed of 50m/s. It acccelerates with a constant upward acceleration of 2m/s^2 until its engines stop at an altitude of 150m. (a)What is the maximum height reached by the rocket? (b)How long after lift-off does the rocket reach its maximum height? (c) How long is the rocket in the air?

  • physics - ,

    a) find the velocicy due to the acceleration at the shutoff h=150m. Using that velocity, find the max height (when vfinal=0).
    b)how long does it take to reach 150m? Then, how much longer to the top?

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