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jboone88
Feb19-06, 02:44 PM
I can't figure this one out:

A point of the surface of a solid sphere (radius = R) is attached directly to a pivot on the ceiling. The sphere swings back and forth as a physical pendulum with a small amplitude. What is the length of a simple pendulum that has the same period as this physical pendulum? Give answer in terms of R.

Thanks for the help

Hootenanny
Feb19-06, 02:46 PM
Well, how far have you got?