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Angular momentum in gyroscopic effect

  1. Oct 2, 2012 #1
    Why does the magnitude of angular momentum remain constant in gyroscopes?
     
  2. jcsd
  3. Oct 3, 2012 #2

    cjl

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    In what sense? Both the magnitude and the direction of the angular momentum are conserved, unless there's an external torque, and if there's a torque, both the magnitude and direction can change.
     
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