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Calculating resistance force parallel to a slope

  1. Mar 20, 2012 #1
    1. An 80kg skier is skiing down a 5 degree slope at constant velocity. find

    a) the resistance force parallel to the slope.

    this should be a really easy question but i just dont know where to start. i have drawn out the vectors for parallel force and perpendicular force but do i not need more information to do the calculations?
     
  2. jcsd
  3. Mar 20, 2012 #2
    Remember that he is moving at a *constant* velocity. When is velocity constant?
     
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