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Homework Help: Moment of inertia, Sphere. New method.

  1. Jun 11, 2006 #1
    Q. Show the moment of inertia of sphere is 2/5mR^2
    using many different methods.

    My professor said he knew 18 different method.
    Do you have a new idea?
    Tell me anything you know. I hope one of your methods will be the 19th method.
  2. jcsd
  3. Jun 11, 2006 #2
    Perhaps your professor was referring to experimental methods of finding moment of inertia of a solid sphere ( I am sure there are more than 18).
    The only method, by way of proof, that I know of involves calculus.
  4. Jun 11, 2006 #3
    I have found 4 methods involving calculus.
    calculus from disk(2 methods), sphere and shell.
  5. Jun 11, 2006 #4
    Your two methods using discs, how do they vary ?
    Also I would like to know your approach using a sphere .
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