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!

Tension and Pulleys

  1. Sep 7, 2011 #1
    1. The problem statement, all variables and given/known data
    What is the tension T? The pulley is massless and frictionless.
    m1=661 g, w2=5 N, g=9.8 m/s2
    Picture attached



    2. Relevant equations
    T=w1+w2 ??


    3. The attempt at a solution
    First of all, I converted 661 g into kg. Next I multiplied that by g. I added that value to the 5N and I thought that was the T which was wrong.
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     

    Attached Files:

  2. jcsd
  3. Sep 7, 2011 #2
    If you draw a free-body diagram you don't have to think as hard IMO. See the attached.
     

    Attached Files:

  4. Sep 7, 2011 #3
    Where did you get the 2T' from?
     
  5. Sep 7, 2011 #4
    I drew a free-body diagram for both masses. The tension T will not be the same as the tension in the other rope. Do the two free-body diagrams I drew make sense?
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Tension and Pulleys
  1. Tension and Pulleys (Replies: 7)

  2. Pulleys and Tension (Replies: 3)

  3. Pulley and tension (Replies: 11)

  4. Pulleys and Tension (Replies: 6)

  5. Pulley and Tension (Replies: 1)

Loading...