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Homework Help: General Question about Moment

  1. Oct 16, 2007 #1
    When taking the moment in 3 space i know the formula is

    M = r x F


    but for example ifyour finding the moment of force F about point C


    how do u know from point C to where you have to make the line.

    like if u have

    ------------------> about point C

    C

    you can make it
    PHP:


    ------------------> F
    -a
    -
    C

    or

    ------------------>F
                    -a
               -
          -
    C
    Ive read that the ca is a vector from point C to ANYWHERE on the line of action. So does that mean any where from point C to the line F ANYWHERE???
     
    Last edited: Oct 16, 2007
  2. jcsd
  3. Oct 17, 2007 #2

    Pyrrhus

    User Avatar
    Homework Helper

    Yes, that's correct.
     
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