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Help explain

  1. Nov 18, 2007 #1
    Two particles A & B of masses 3 kg and 4kgr connected by a string and lie at rest on a smooth horizontal table with string taut. B is struck wid a blow directly away from A so that there is an impulse of 8Ns transmited along the string. Find speedd with which A begins to move.
    ans is 3/8
  2. jcsd
  3. Nov 18, 2007 #2
    Got any working to show us?
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