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Another moment of inertia with possible answer

  1. Feb 19, 2004 #1
    Question:

    For a thin uniform rod of length l and mass M, find the momen of inertia about an axis perpendicular to the rod and passing through its center, and the moment of inertia about an axis perpendicular to the rod and passing through on one end.


    Answer:

    For the end, Iend= 1/3MR^2
    For the center, Iend=Icm + M(L/2)^2 = 1/3ML^2 so Icm=1/12ML^2
    Is this all I need for this question?
     
  2. jcsd
  3. Feb 19, 2004 #2

    jamesrc

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    Science Advisor
    Gold Member

    Your answers are correct (I assume you meant l where you had R), but I would guess that the purpose of this question is for you to compute the moment of inertia from its definition (using the parallel axis theorem for the other one is a valid method, though). If you already did that, just show your work.
     
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