1. The problem statement, all variables and given/known data Block A with a mass of 10 kg rests on a 35degree incline. The coefficient of static friction is 0.40. An attached string is parallel to the incline and passes over a massless, frictionless pulley at the top. The largest mass mb, attached to the dangling end, for which A remains at rest is....? 2. Relevant equations F = ma Fs = us*Fn 3. The attempt at a solution Fs = .4*10*9.8*cos35 = 32.1N That's all I've got so far. :rofl: Not sure why I'm struggling so hard on this problem.