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Homework Help: A rope and a frictionless table

  1. Sep 9, 2008 #1
    1. The problem statement, all variables and given/known data

    A rope of mass M and length L lies on a frictionless table, with a short portion L0 hanging through a hole. Initially the rope is at rest. Evaluate A and B so that the initial conditions are satisfied.

    3. The attempt at a solution

    Ok, so I understand the problem and have gotten the final 2 equations (according to my book):
    yAeyt-yBe-yt=0
    L0=Aeyt+Be-yt

    It looks like, according to the first equation, Be-yt=Aeyt. Plugging this into the second equation, L0=2Aeyt and L0=2Be-yt. This seems intuitively wrong, but I'm not sure exactly why. Any thoughts?
     
  2. jcsd
  3. Sep 9, 2008 #2
    Bump. All I need is some confirmation, or a way to confirm, that I have the correct equations.
     
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