Hello, I'm new here. I've browsed before and saw that this is a very helpful community, so I came here for assistance. 1. The problem statement, all variables and given/known data Blocks A, B, and C are placed as in the figure and connected by ropes of negligible mass. Both A and B weigh 27.5N each, and the coefficient of kinetic friction between each block and the surface is 0.40. Block C descends with constant velocity. Image attached: http://session.masteringphysics.com/problemAsset/1038585/38/YF-05-56.jpg 2. Relevant equations What is the weight of block C? 3. The attempt at a solution I've found the first part of this problem, which is the tension holding A and B, which is 11N. Part C has me confused. Here's my attempt: Block B ∑FY= NB-mBgsin(36.9)=0 NB=27.5Nsin(36.9) = 16.5115562 fK= µNB = .40(16.5115562)= 6.604622479 ∑Fx= T2-T1-fK- 27.5cos(36.9)= 0 T2-T1-6.604622479- 21.99132811= 0 T1= 11N T2-11-6.604622479- 21.99132811= 0 T2= 17.59595059N. Block C ∑Fx= T2-mCg = 0 T2 = mCg = 17.59595059N Is this correct? Thanks in advanced.