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!

Statics: Cylinder & Spring system

  1. Feb 21, 2008 #1
    1. The problem statement, all variables and given/known data
    The linear spring exerts a force at each of its ends that is proportional to the amount of stretch it undergoes. The spring modulus (proportionality constant) is 2 N/cm and its natural (unstretched) length is 1.5 m. Find the normal and friction forces (a) between cylinders A and B and (b) between B and the ground, if the weight of A is 500 N and that of each of B and C is 200 N.

    2kmuxh.gif


    2. Relevant equations
    Sum of moments = 0
    Sum of forces = 0
    fs = kx

    3. The attempt at a solution
    [tex]\Sigma[/tex]MAB = N(r/2) - fr(1+[tex]\sqrt{3}[/tex]/2) + fs(r/2)
    [tex]\Sigma[/tex]MBGround = (mg-N')(r/2) + f'r(1+[tex]\sqrt{3}[/tex]/2) + fsr

    Am I on the right track? I don't really know where to go from here. Please help! Thanks.
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     

    Attached Files:

  2. jcsd
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted



Similar Discussions: Statics: Cylinder & Spring system
  1. Statics problem (Replies: 0)

Loading...