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Can someone help me get the correct answer?

  1. Feb 8, 2015 #1
    1. The problem statement, all variables and given/known data

    2. Relevant equations

    3. The attempt at a solution
  2. jcsd
  3. Feb 9, 2015 #2
    Hi. What are the quantities you are using? (Itotal, I1, I2 and l); what do they represent and how do you get these relations?
    Do you know how to express the Lagrangian here?
    If not, can you write Newton's 2nd law for each mass?
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