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I need help with this problem

  1. Jun 29, 2012 #1
    1. The problem statement, all variables and given/known data
    the problem gave a initial θ=30º, bar mass=m
    they want to know the angular velocity when θ=0º
    AB=L/2 and BC=L/2

    attachment.php?attachmentid=48747&stc=1&d=1340989659.jpg


    My attempt:
    rest in the inicial state, so: v=0, w=0 and T1=0
    using conservation of energy and V=w*L/2
    I can find w( angular velocity)
    bit i'm not quite sure that this is the right metod




    thanks
     

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    Last edited: Jun 29, 2012
  2. jcsd
  3. Jun 29, 2012 #2

    phinds

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    read the rules about how to post homework problems. You have to show some attempt yourself.
     
  4. Jun 29, 2012 #3
    sorry, i reposted it
     
  5. Jun 29, 2012 #4

    rude man

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    I don't know what your w, V, v and T1 are but your basic idea is correct.
     
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