1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Torque and moment

  1. Dec 11, 2014 #1
    1. The problem statement, all variables and given/known data
    Attached image

    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?

    Attached Files:

  2. jcsd
  3. Dec 11, 2014 #2


    User Avatar
    Staff Emeritus
    Science Advisor
    Homework Helper

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


    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    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).
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted