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Simple pendulum-fluids

  1. Jan 17, 2010 #1
    If all things have moment of inertia then a swinging sphere with water filled must have moment inertia too? Then can we analyse it as an approximate case of angular simple harmonic motion?
  2. jcsd
  3. Jan 17, 2010 #2


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    Sure. Just don't forget that if you rotate the sphere, the water will heavily impede the rotation.
  4. Jan 18, 2010 #3
    I can't see how water will impede motion.
    Anything to do with viscosity?
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