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March 29, 2017

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A rocket moves upward, starting from rest with an acceleration of 28.4 m/s2 for 4.79 s. It runs out of fuel at the end of the 4.79 s but does not stop. How high does it rise above the ground?

  • Physics - ,

    Vo = a*t = 28.4*4.79 = 136 m/s.
    h = Vo*t + 0.5g*t^2
    h = 136*4.79 - 4.9*4.79^2 = 539 m.

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