1. The problem statement, all variables and given/known data "Consider the following arrangement of masses. Mass 1 is connected to mass 2 by a very light string and moves over a frictionless pulley so that both masses move with the same speed and move the same distances (m2 to the right and m1 down). Assume m1 = 15 kg, m2 = 15 kg and the coef. of kinetic friction is 0.73. The masses start with an initial velocity of 1.00 m/s. What is their speed after moving 0.0100 m?" 2. Relevant equations dE = E1 + E2 = dU1 + dK1 + dU2 + dK2 E1 = dU1 + dK1 (0) = m*g*dH E2 = dU2 (0) + dK2 = m/2 * (vxf^2 - vxi^2) - friction????? Friction = - 0.73 * mg * d 3. The attempt at a solution This is where I'm getting stuck. So do I set m*g*dH = m/2 * (vxf^2 - vxi^2) - friction and solve for vf through this equation? or do I use m/2 * (vxf^2 - vxi^2) - m*g*dH = - friction? I'm just not sure how to set up the final equation in order to solve for velocity.