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Homework Help: Colliding, spinning particles: Can it be solved?

  1. Nov 16, 2008 #1
    Hi, I am trying to work out the result of a collision between two rotating particles if you knew all initial speeds, initial rotation speeds, masses etc. There is no friction or anything complicating.

    COM: m1v1initial + m2v2initial = m1v1final + m2v2final.

    COAM: I1w1initial + I2w2initial = I1w1final + I2w2finall.

    COE: m1v21initial + m2v22initial + I1w21initial + I2w22initial = I1w21final + I2w2finall + m1v21final + m2v22finall.

    So 3 equations for 4 unknowns . Am I missing anything obvious? Is there another equation I could use was thinking trying to use L= r x mv ? Is there any assumptions I could make to simplify things?

    Thanks for any help.
  2. jcsd
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