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Constrained pully system

  1. Apr 7, 2015 #1
    1. The problem statement, all variables and given/known data
    A,B,C are of mass one kg each, while D,E are massless pulleys.
    We need to find Tension in string, acceleration of A,B,C

    2. Relevant equations


    3. The attempt at a solution
    I tried getting tension and got T=2T, which gives T=0, which is not the answer. Thanks in advance
  2. jcsd
  3. Apr 7, 2015 #2
  4. Apr 7, 2015 #3


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    Sounds to me as though you assumed no acceleration.
    Can't tell where you are wrong if you don't post your working.
  5. Apr 7, 2015 #4
    I actually couldn't get anything, any hint on which I can work on?
  6. Apr 7, 2015 #5


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    You wrote that you did some work and got T=2T. Please post that work. You must show some attempt, even if it is just some thoughts.
    Have you drawn a free body diagram for each pulley? Each of those should give you an equation, though some may be uninteresting because they involve unknown forces from outside the system.
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