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Torque and moment

  1. Dec 11, 2014 #1
    1. The problem statement, all variables and given/known data
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    2. Relevant equations


    3. The attempt at a solution
    The book says that the force P causes a torque about the x axis. Why is it not a moment about x?
    Why is it specifically a torque in this case?
     

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  3. Dec 11, 2014 #2

    SteamKing

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    Torque and moment are synonymous in this case.
     
  4. Dec 11, 2014 #3

    PhanthomJay

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    The terms 'torque' and 'moment' are sometimes used interchangeably, although 'torque' often is used when twisting is involved. Here, the force P causes, at the base of the post support. both a moment about the z axis, Mz, and a moment about the x axis, Mx, where Mz bends the post (a bending moment) and Mx twists the post (a torque).
     
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