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Homework Help: Conservation of momentum question FINAL

  1. Mar 29, 2009 #1
    Can someone care to explain the mathematics behind it?
    i initally thought that she'd go the full 15m, but because the cart does move slightly to the left as she runs it's just a bit less than the full 15m,

    can someone give me the maths to it?

    http://img6.imageshack.us/img6/9297/masteringphysicsq1.jpg [Broken]
    Last edited by a moderator: May 4, 2017
  2. jcsd
  3. Mar 29, 2009 #2


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    Gold Member

    As Ann runs to the right, the cart starts to move to the left with equal momentum... that gives you your first equation.
    Last edited: Mar 29, 2009
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