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I Centre of mass velocity special relativity

  1. May 2, 2016 #1
    Why is it that the ZMF velocity is given by the total momentum of the system divided by the total energy?

    Many thanks :)
     
  2. jcsd
  3. May 2, 2016 #2

    Simon Bridge

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    That would be in units where c=1.
     
  4. May 3, 2016 #3
    Even so, where does this result come from?
     
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