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Sum of all moments problem

  1. Jan 17, 2007 #1
    If the sum of all moments about a point A of a body is 0, will it then be 0 anywhere else on the body? (I'm working in 2-D)
     
  2. jcsd
  3. Jan 17, 2007 #2

    russ_watters

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    Maybe. It depends entirely on the particulars of the problem.
     
  4. Jan 17, 2007 #3

    Hootenanny

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    Not necessarily.
     
  5. Jan 17, 2007 #4
    So I don't necesarrily have equilibrium if I find that F(res) = 0 and that M(A) = 0 ? What more do I need to `show eq.?
     
  6. Jan 17, 2007 #5
    I assume that it works the other way around: if I know that there's equilibrium, then the sum of all moments around any point is 0.
     
  7. Jan 17, 2007 #6

    Hootenanny

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    That is correct. With respect to your previous post, it depends on the situation, as Russ said in your other thread.
     
  8. Jan 17, 2007 #7

    berkeman

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    kasse, do not multiple post the same question across multiple forums. I've merged in the thread that you started in Classical Physics with the same question.
     
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