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Rotational Equilibrium

  1. Nov 18, 2007 #1
    1. The problem statement, all variables and given/known data

    Here is the problem and a diagram:


    2. Relevant equations

    T= r*F

    3. The attempt at a solution

    I don't know where to begin. Where are the normal forces acting? I am just can't visualize this problem and it has me stumped.
  2. jcsd
  3. Nov 18, 2007 #2


    User Avatar

    Staff: Mentor

    A normal force acts normal (perpendicular) to the moment arm on which it acts. The moment arms extend from the pivot to the point of interaction.
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