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Homework Help: Static structure

  1. Feb 3, 2006 #1
    The attachment shows a structure. I'm supposed to calculate the forces in the members B and C. I try the following:

    [tex]
    \sum M _A = BL + 2CL - F \cdot {3 \over 2}L = 0
    [/tex]

    [tex]
    \sum {F_Y = B + C - F = 0}
    [/tex]

    Solving for B and C from this doesn't yield the correct answer, which is B=3F/10 and C=6F/10.

    Can someone explain?
     

    Attached Files:

    • beam.jpg
      beam.jpg
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  2. jcsd
  3. Feb 3, 2006 #2
    Please post homework problems in the homework help section.

    As for your problem, it looks as if point C is free floating. So there is no force developed at C. Hope that solves your worries.
     
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