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Homework Help: Moment of inertia and Center of mass

  1. Aug 16, 2006 #1


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    Lets say I have some convex shape defined by a set of points in a clockwise direction. How do I calculate the MOI and the COM?
  2. jcsd
  3. Aug 17, 2006 #2
    calculate the MOI.
    first assume the coodinat of the axis is (x,y,z).and the distance from points to axis are known as ri.then the MOI =Σmiri^2 or ∫ρiri^2dl
    do you think it is right?
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