jennychan12
  • jennychan12
Explain this? A skier traveling 12.0 m/s reaches the foot of a steady upward 18° incline and glides 12.2 m up along this slope before coming to rest. What is the average coefficient of friction?
Physics
schrodinger
  • schrodinger
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jennychan12
  • jennychan12
i know that |dw:1356999791579:dw|
jennychan12
  • jennychan12
i know it's non conservative, but what about the mass? because the W(fr) has no mass attached to it.
anonymous
  • anonymous
Find the average retardation by v^2-u^2=2as where final velocity v=0 initial velocity u=12m/s distance travelled=12.2m After that use a=gsin(18)+xgcos(18) to solve for x, the coefficent of friction

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jennychan12
  • jennychan12
so the masses basically just cancel out? thanks.

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