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First moment of area

  1. Sep 3, 2008 #1
    hello everey one actually i ve prob abt first moment of area i know how 2 calculate it but i cant get the physicsl meaning of it also i dont know whats difference between it and the second moment of area
  2. jcsd
  3. Sep 4, 2008 #2


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    The first moment is the center of mass (assuming uniform density). The second moment (around the center of mass) is called the moment of inertia - I suggest you look that up.
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