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Distance up and incline plane

  1. Feb 29, 2008 #1
    [SOLVED] Distance up and incline plane

    A block with mass m = 11.5 kg slides down an inclined plane of slope angle 24.5 o with a constant velocity. It is then projected up the same plane with an initial speed 3.75 m/s. How far up the incline will the block move before coming to rest?

    Equation: KEi + Wnc = KEf = 0.5•m•vi2 + F•d•cos = m•g•h f

    (0.5*11.5*3.75^2) + (11.5*-9.8*cos25.4)d = (11.5*9.8)hf

    80.9 - 102.6d = 112.7hf

    hf = sin24.5 d = .415d

    80.9 - 102.6d = 46.8d

    d = .54 m

    What did I do wrong
  2. jcsd
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