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Homework Help: Very Simple Rotation Inertia of a Thin Rod Problem

  1. Apr 1, 2009 #1
    1. The problem statement, all variables and given/known data
    Calculate the rotational inertia of a meter stick, with mass 0.68 kg, about an axis perpendicular to the stick and located at the 21 cm mark. (Treat the stick as a thin rod.)

    2. Relevant equations
    I = integral of radius squared with respect to mass

    3. The attempt at a solution
    I'm not quite sure how to explain my issue here, but I think all I need is to see this worked out, and then I could probably understand the nature of these problems. Thanks.
  2. jcsd
  3. Apr 1, 2009 #2
    You could use the parallel axis theoram if you know how to find the M.I about the centre of mass of the rod (the centre) :smile:
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