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Tension bag of cement problem

  1. Feb 16, 2008 #1
    1. The problem statement, all variables and given/known data
    A bag of cement of weight 300 N hangs from three wires as suggested in Figure P5.18. Two of the wires make angles 1 = 50.0° and 2 = 23.0° with the horizontal. If the system is in equilibrium, find the tensions in the wires.

    http://img165.imageshack.us/my.php?image=p524wq2.gif


    I am not sure how to do this problem and I am having a lot of problems with tensions in general. If someone could help me start this problem it would be appreciated.
     
  2. jcsd
  3. Feb 16, 2008 #2

    arildno

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    Note that wire 3 supports the cement bag alone; what must the tension in it be?
     
  4. Feb 16, 2008 #3
    I thought so, in which case it would be 300N. As far as the other two tensions, I am still at a loss.
     
  5. Feb 16, 2008 #4
    break the other two tensions into components
     
  6. Feb 17, 2008 #5
    Ok I figured out how to solve it, thanks for the help
     
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