1. Not finding help here? Sign up for a free 30min 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!

Tension and Torque

  1. Feb 14, 2009 #1

    a.a

    User Avatar

    1. The problem statement, all variables and given/known data

    A man of mass 60.8 kg stands on a scaffold supported by a vertical rope at each end. The scaffold has a mass of 17.2 kg and is 2.7 m long. Suppose the man stands to the right from the middle of the scaffold that is a distance one sixth of the length of the scaffold. What is the tension in the right rope?

    2. Relevant equations

    Torque = F r sin(angle to horizontal)
    F = m g

    3. The attempt at a solution

    clockwise torque = anticlockwise torque
    (2.7)(17.2) + (60.8)(9.8)(1.8) = F (2.7)
    ...
    F = 414.4 N

    I even tried it without useing the mass of the board and then placing the force caused by the mass (Fg) at the center, but all these thing didn't work.
    We are also asked for the tension in the left rope after the tension in the right rope. But I cant figure out the right one first. Thanks in advance...
     
  2. jcsd
  3. Feb 14, 2009 #2

    a.a

    User Avatar

    I realized my mistake, got it now, thanks anywas.. sorry I posted too soon.

    clockwise torque = anticlockwise torque
    (1.35)(17.2)(9.8) + (1.8)(60.8)(9.8) = F (2.7)
    ...
    F = 481.5
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Tension and Torque
  1. Torque Tension (Replies: 9)

  2. Tension & Torque (Replies: 1)

  3. Tension! (and torque?) (Replies: 7)

  4. Torques and Tensions (Replies: 2)

  5. Tension and torque (Replies: 12)

Loading...