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Ring oscillation formula derivation

  1. Apr 11, 2010 #1
    1. The problem statement, all variables and given/known data

    Derive and show that the period for a thick ring would be


    2. Relevant equations

    I'm not sure....

    3. The attempt at a solution

    Obviously, delta R means the difference between Ri and Ro would be considerable. So ΔR=Ro-Ri. Then Ro=R+ΔR/2 and Ri=R-ΔR/2
    I also know that T=2π√(I/mgr) and Itotal=Icenter of mass + MR^2........
    Can you guys help me? I'm lost here. Thanks a lot.
  2. jcsd
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