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Help me understand frictional force?

  1. Dec 6, 2008 #1
    1. The problem statement, all variables and given/known data
    If a force of 150 newtions is needed for a 600 newton weight to overcome friction, what is the coefficient of friction?

    3. The attempt at a solution
    I'm really confused, I drew a force diagram but it didnt help. I know I need to get the frictional force to solve for the coefficient of friction, but I'm not sure how to get it...
  2. jcsd
  3. Dec 6, 2008 #2

    Doc Al

    User Avatar

    Staff: Mentor

    This is the same issue as in your other thread. See my comments there. The friction is given.
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