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Homework Help: Rotational Dynamics Equilibrium - Torque With PICS!

  1. Oct 24, 2011 #1
    1. The problem statement, all variables and given/known data
    ** disregard A)
    [PLAIN]http://img153.imageshack.us/img153/917/img20111024001591.jpg [Broken]

    2. Relevant equations
    T= Fd


    3. The attempt at a solution
    [PLAIN]http://img21.imageshack.us/img21/9645/img20111024001611.jpg [Broken]

    Basically I'm stuck now, and don't know what to do.. I don't know what to put for the force of gravity, is it a vector?
    Please help
     
    Last edited by a moderator: May 5, 2017
  2. jcsd
  3. Oct 26, 2011 #2
    Fg = mg

    you have m of beam, 160kg

    then, I think, you have to split mg up into orthogonal components, and see how much of it is going towards Fn.
     
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