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Vectors tension force

  1. Jul 29, 2007 #1
    1. The problem statement, all variables and given/known data

    a 25 kg restaurant sign hangs from a 1.25m horizontal pole with one end fastened at right angle to the brick wall of a restaurant and the other end fastened to a 2.5m cable . determine the force of compression actng on the pole and the tension in the cable.

    2. Relevant equations

    im totally clueless this is a past test question. i was thinking u could possible use the sin law

    t1=t2sin(angle2)/sin(angle1) ?? this is where t is the tension. i would like help understanding how to calculate them.

    Oh i drew the diagram so i know how it loks like
    3. The attempt at a solution
  2. jcsd
  3. Jul 30, 2007 #2


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    Staff Emeritus
    Science Advisor

    Try looking at moments (torques).
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