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!

Forces and pully question

  1. Mar 20, 2013 #1
    1. A 2.0 kg mass sits on a frictionless horizontal surface. The mass is attached by a weightless string running over a frictionless pulley attached to a 1.5 kg mass. An additional string exerts a force on the block on the mass on the surface so that no motion results. Find the tension in each of the strings.



    2.



    3. I just wonder if this problem is as easy as it seems. Fg on mass 2 is equal to the tension force on mass 2 therefore the tension in string 2 is equal to the weight of the object. If that is the case and there is no acceleration to either mass in the problem the tension force for both strings is equal to the weight of the suspended mass.
     
  2. jcsd
  3. Mar 20, 2013 #2

    TSny

    User Avatar
    Homework Helper
    Gold Member

    Sounds right as long as the additional string is pulling horizontally.
     
  4. Mar 20, 2013 #3
    yea diagram looks like

    ---------block---------
    |
    |
    |
    block
     
  5. Mar 20, 2013 #4

    TSny

    User Avatar
    Homework Helper
    Gold Member

    Good. Then I think your reasoning is correct! :smile:
     
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: Forces and pully question
  1. Question about pully (Replies: 16)

  2. Intro Pully Question (Replies: 8)

  3. Pully Question (Replies: 1)

Loading...