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: Pulley system

  1. Oct 24, 2008 #1
    This is a general question...

    Given a pulley system that consists of one pulley and 2 strings--each with a mass hanging from it. One mass is 3kg, the other is 4kg. In class we concluded that the tension on each string was equal--why?
  2. jcsd
  3. Oct 24, 2008 #2
    Arent they attached to the same string?

    Can you have two different tension forces on one string?
  4. Oct 24, 2008 #3
    Oh I see. What if you had one string along 2 pulleys? (So then the string is going upwards for 2 parts of the string, and downwards for 1 part of the string). Then is the tension along the whole string just T, or for 2 parts it is T, and the other part it is -T?
  5. Oct 24, 2008 #4
    AS long as the same string is being used the tension force is the same
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook