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Static equilibrium question

  1. Sep 22, 2009 #1
    1. The problem statement, all variables and given/known data
    A weight of 200 pounds is supported by a cable system as shown. Determine all cable forces and the force in the vertical boom BC.


    2. Relevant equations



    3. The attempt at a solution

    i separated the x compontents and y components:
    x:CAcos60-CDcos36.86989765+DEcos15=0
    y: CAsin60-CDsin36.86989765+DEsin15-200+CB=0

    but this looks like i have too many unknowns????
     

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    Last edited: Sep 22, 2009
  2. jcsd
  3. Sep 23, 2009 #2

    tiny-tim

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    Hi Puchinita5! :wink:
    That's because you've lumped everything together. :rolleyes:

    Do equations for the three forces on D, and then equations for the forces on BC. :smile:

    (btw, the question doesn't say that the force on BC is vertical)
     
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