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Homework Help: Truss problem, help!

  1. Sep 6, 2005 #1
    truss problem, urgent help!

    Hey guys i need help with setting up this truss problem 6.30 which can be seen here,

    I know the stress in bc is 10.4ksi (tension) and that the safety facotr for it from 1020 steel is 4.038, I just need help figure out how to figure out that the stress is 10.4ksi. thanks
  2. jcsd
  3. Sep 6, 2005 #2


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    Homework Helper

    The Tension in CD is easy; find it.
    Isolate upright member CE (Moments around pin E).
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