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B If momentum is always conserved...

  1. Sep 18, 2015 #1
    Why isn't perpetual motion possible?
  2. jcsd
  3. Sep 18, 2015 #2


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    Staff: Mentor

    Welcome to the PF.

    PMM is a banned topic here at the PF. It is specifically listed in the Banned Topics section of the PF Rules that you agreed to when you joined here. Thread is locked.

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