1. The problem statement, all variables and given/known data http://img97.imageshack.us/img97/5319/workdone.gif [Broken] There are 2 varying forces acting on the block. Fy = y/5 + 6 Fx = 5x2 The block is displaced by the forces 45deg from +x-axis: 4.5m What is the work done by the force to the block. please correct me if the question is wrong (created by me!) 3. The attempt at a solution Firstly, I'm wondering should we integral by Fx and Fy individually or combine them along the displacement before integration? secondly, should we model the object as a particle by summing all forces and calculate the work done or summing up the work done along x-axis and y-axis? Thank you.