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Simple Theory Question Torque

  1. Apr 27, 2010 #1
    1. The problem statement, all variables and given/known data
    Lets say I have a the generic pulley setup with no friction

    http://img.sparknotes.com/content/testprep/bookimgs/sat2/physics/0014/tablewpulleyFBD.gif

    How would I calculate the Torque on the pulley?


    2. Relevant equations

    Torque = Force times Radius

    3. The attempt at a solution

    Would the torque simply be the torque caused by gravity of the free hanging weight or do I have to take the force of tension into account?
     
  2. jcsd
  3. Apr 27, 2010 #2
    Use the free body diagrams and Newton's 2nd law to find the acceleration of the system. Then you can find the torque.
     
  4. Apr 27, 2010 #3
    Thank You.
     
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