1. The problem statement, all variables and given/known data 140 gram mass & a 110 g mass are connected by a masless string passin over a massles pully which has a frictional resist. f=0.147 N when M (total weight of 2 masses) = 250 g. -What's the acceleration of the system after release? -How far does the 140 g mass fall during a 1.5 s interval following release from rest -what's the minimum mass differnce for which the pulley syst. will have a non-0 acceler. when released from rest when M = 250 g 2. Relevant equations Somethin like this? T1 + T2 = (m1 + m2)g + (m2-m1)a 3. The attempt at a solution The third question's my problem. For the first one, I'm guessin it'd be right just to use the equation to solve for a and T1/T2 would be the weight of each mass multiplied by gravity's constant? Would you use kinetic equations once you find acceleration to find how far the mass would fall during 1.5 s?