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March 30, 2017

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A sled slides down a snow-covered hill at CONSTANT SPEED. If the hill makes an ANGLE of 10degrees ABOVE THE HORIZONTAL, WHAT IS THE COEFFICIENT OF KINETIC FRICTION BETWEEN THE SLED AND THE SNOW?

~>HELP!

  • Physics - ,

    Well, constant speed means no net force, so friction must equal the component of weight down the hill

    mg*mu*cosTheta=mg*SinTheta

    TanTheta=mu
    check my thinking.

  • Pyhsics - ,

    0.176

  • Pyhsics - ,

    Coefficient of kinetic friction=
    tan0- Accelaration/gcos0

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