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March 28, 2017

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An Olympic skier moving at 20.0 m/s down a 30.0 degree slope encounters a region of wet snow and slides 145 m before coming to a halt. What is the coefficient of friction between the skis and the snow?

  • physics - ,

    Initial K.E. = work done against friction while slowing down
    = M g cos 30*mu

    = (M/2)*V^2

    M cancels out. Solve for mu

  • physics - ,

    0.74

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