- #1
spacecataz
- 6
- 0
Homework Statement
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.
Homework Equations
Sum of moments = 0
Sum of forces = 0
fs = kx
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.