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Finding mew with the angle

  1. Nov 15, 2011 #1
    1. The problem statement, all variables and given/known data
    A skier traveling 12.6 m/s reaches the foot of a steady upward 20° incline and glides 11.4 m up along this slope before coming to rest. What was the average coefficient of friction?
    2. Relevant equations
    Egi+Eki+wnc=Egf+Ekf
    3. The attempt at a solution
    I solved for everything but i don't know how to solve for mew
     
  2. jcsd
  3. Nov 15, 2011 #2

    Redbelly98

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    Welcome to Physics Forums.
    Can you show what you did with the equation by using the given information? Also, you'll need to think about how wnc is related to friction.
     
  4. Nov 15, 2011 #3
    is it ok if i say no? I don't understand it very well you see because im not sure if 11.4 m is height or distance. :confused:
     
  5. Nov 15, 2011 #4

    Redbelly98

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    Okay. 11.4 m is the distance along the slope, not the height. That should help you with finding Egi and Egf in the equation you wrote earlier.
     
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