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Reduce angular momentum from Iw to mvr

  1. Aug 21, 2014 #1
    In vector form,

    L=Iω.

    I am trying to show that for a point particle, this reduces to L=rxp, but am getting an extra factor of r2 :

    For the case of a point particle, I=Mr2.
    Also, ω=rxv.
    Plugging these into L=Iω gives:

    L=Mr2(rxv) = r2(rxp).

    Thus this reduces to a point particle only for r=1..but that is silly.

    I appreciate any help!:)
     
  2. jcsd
  3. Aug 21, 2014 #2

    jtbell

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    Staff: Mentor

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