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Force and Moment

  1. May 7, 2010 #1
    1. The problem statement, all variables and given/known data

    See attached .pdf. Need to find the moment of force P about O. Force P in300N @ 30degree

    2. Relevant equations

    cosine law
    sine law

    3. The attempt at a solution

    see attached. Please confirm I did this ok.

    Attached Files:

  2. jcsd
  3. May 7, 2010 #2

    Doc Al

    User Avatar

    Staff: Mentor

    Note that the angle is with respect to the vertical. I think you may have mixed up Fax and Fay.
  4. May 7, 2010 #3
    Yeah I noticed that. I should use 60 degrees instead I guess
  5. May 7, 2010 #4

    Doc Al

    User Avatar

    Staff: Mentor

    Yes. The x-component is Fcosθ, where θ is the angle with respect to the +x axis.
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