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Homework Help: Equilibrium problem

  1. Dec 4, 2007 #1
    1. The problem statement, all variables and given/known data
    Torque is used to determine the weight of an object. A 10.0 m long pole weighing 20.0 N has its center of gravity 2.00 m from one end. An object of unknown weight is hung at the end opposite the center of gravity. With the object hanging at this end, the pole now balances 2.00 m from the unknown weight. What is the weight of the unknown weight?


    2. Relevant equations
    T = F * R


    3. The attempt at a solution
    T = 20 * 2
    = 40 ?
     
  2. jcsd
  3. Dec 5, 2007 #2
    [tex]T_1=T_2[/tex]

    [tex]F_1 R_1=F_2 R_2[/tex]

    Solve for [tex]F_2[/tex]
     
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