scott <sco### [at] laptopcom> wrote:
> Friction against what?  Newton's 3rd law...

  Against the ground and the air.

  Friction causes heat, and the energy for that heat must come from somewhere.
I cannot be produced from nothing.

  The answer is that the energy which produces that heat is coming from
the angular momentum, which is thus reduced by a proportional amount.

-- 
                                                          - Warp

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