1. The problem statement, all variables and given/known data A small mass m is pulled over the top of a frictionless half cylinder of radius R by a massless cord passing over the top. Without using the conservation of energy, find the work done in moving the mass from the bottom to the top of the cylinder at a constant speed, in terms of m, g, and R. 2. Relevant equations ? 3. The attempt at a solution Really not sure how to approach this... Can I somehow set up an integral?