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Truess question

  1. Sep 1, 2010 #1
    can anyone pls answer the question on the pic... thx...
     
  2. jcsd
  3. Sep 1, 2010 #2
    here.. thx
     

    Attached Files:

  4. Sep 1, 2010 #3
    Are you able to draw a triangle of forces for the joint A?
     
  5. Sep 1, 2010 #4
    i did try this..
    Fx = 0
    Fxa=Fxb+fxc

    Fy=o
    Fya=Fxb+fxc

    but i cannot get the right answer....
     
  6. Sep 2, 2010 #5
    You didn't answer my question. However, try this one. For the member AC alone, can you write an equation linking the force in it to its components?
     
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