Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

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,
    http://www.mustangmods.com/data/16002/study1.jpg

    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

    lightgrav

    User Avatar
    Homework Helper

    The Tension in CD is easy; find it.
    Isolate upright member CE (Moments around pin E).
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook