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!

Work and Pulley

  1. May 16, 2015 #1
    1. The problem statement, all variables and given/known data

    2. Relevant equations

    W = Torque * distance

    3. The attempt at a solution

    The net torque is 8*.09-11*.06 = .06, and the distance moved is 4pi, because 2 full rotations, but this is not one of the choices...
    Last edited: May 16, 2015
  2. jcsd
  3. May 16, 2015 #2
    Edit: never mind, delete the thread. (I cannot find delete button)

    Edit 2: Replaced with new problem, that I do need help with.
  4. May 16, 2015 #3


    User Avatar
    Homework Helper
    Gold Member

    The question states that the amount of string unraveled is 1 m, not 2 m. (Oops, I did not see your second post.)
  5. May 16, 2015 #4


    User Avatar
    Homework Helper
    Gold Member

    Note that the torques act in the same direction.
  6. May 16, 2015 #5
    Thanks, got it now!
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted

Similar Discussions: Work and Pulley
  1. Work with pulleys (Replies: 2)

  2. Work Energy Pulley (Replies: 2)

  3. Work w/ Pulleys (Replies: 6)