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Not Needing Mass For Torque

  1. Nov 17, 2008 #1
    1. The problem statement, all variables and given/known data

    When analyzing the torques on a suspended bar such as meter stic, under what conditions is it acceptable to ignore the mass of the bar itself?

    2. Relevant equations

    NONE

    3. The attempt at a solution

    The only condition that I can find is when the mass of the bar itself is neg liable compared to the other hanging weights. Are there any more conditions that I am missing?
     
  2. jcsd
  3. Nov 17, 2008 #2
    Would this work as well: if the bar was suspended in the center as the mass of the bar is equal on both sides of the suspension
     
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