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Homework Help: Rotational Equilibrium

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

    Here is the problem and a diagram:

    http://www.city-wars.com/lastscan.jpg [Broken]

    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.
     
    Last edited by a moderator: May 3, 2017
  2. jcsd
  3. Nov 18, 2007 #2

    Astronuc

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    Staff Emeritus
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    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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