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Equilibrium of a Rigid Body

  1. Nov 26, 2012 #1
    1. The problem statement, all variables and given/known data

    Suppose the ruler in procedure 3 is asymmetrical, balancing at the 60.2 cm mark. The ruler is now supported at the 41.3 cm mark, and a mass of 364 g is placed at the 26.2 cm mark. Find the mass of the ruler. The ruler is 1.00 m long.


    2. Relevant equations

    Torque=τ=rFSinθ

    3. The attempt at a solution
     
  2. jcsd
  3. Nov 27, 2012 #2

    haruspex

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    What are the forces acting on the ruler? How large is each and what is its torque about the balance point (discriminating clockwise from anticlockwise)?
     
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