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Help with a complex pulley problem

  1. Nov 20, 2012 #1
    1. The problem statement, all variables and given/known data
    The problem is based in the diagram (the jpg attached).

    All pulleys are ideal pulleys, and the hanging surface is massless. the problem states that the guy with mass m pulls each string with a force F, and asks to solve the value of F in terms of m and g. Since the pulleys are ideal I know that the forces on the ends are both F, as marked in the diagram, but I dont know what are the values of T1 and T2 (note:T1=T2). If anyone could please help I would appreciate it.

    ƩF=0=-mg+2F+F+F+T1+T2
     

    Attached Files:

  2. jcsd
  3. Nov 20, 2012 #2

    Simon Bridge

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    isolate the pulley associated with T1 and draw a free body diagram for it.
     
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