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Angular Momentum Problem of turntable

  1. Oct 8, 2006 #1
    This seems pretty basic but I am drawing a blank. Thanks in advance.

    "A cat is sitting on the rim of a wooden turntable that is free to turn about a vertical axis. The turntable's mass is 3 times the cat's mass and is initially at rest. The cat then starts walking around the rim at a speed of 0.6m/s relative to the ground. How fast does the turntable's rim move relative to the ground?"
     
  2. jcsd
  3. Oct 8, 2006 #2

    Chi Meson

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    conservation of angular momentum. Just like linear momentum, when two things push apart, mv of one object equals -mv of the other, in angular momentum, the Iw of one equals the -Iw of the other.
     
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