I need someone to double check it, because this was an exam given by my teacher and I am trying to solve it, but I do not have any results so I would like to know if I did it correctly or not. Thank you! 1. The problem statement, all variables and given/known data Two blocks m1 = 50kg and m2= 100kg are attached to a rope as shown in figure. Pulley is massless. The angle of the inclined plane is pi/6 and the coefficient of kinetic friction is 0.250. Find the variation of kinetic energy if the body m1 goes up 20meters. 2. Relevant equations F = ma kinetic energy = 1/2 mv^2 kinetic friction = mu*normal force. 3. The attempt at a solution See attachment or: http://i40.tinypic.com/6hklm8.jpg for better quality. Thanks for any help.