1. The problem statement, all variables and given/known data A train of mass 2.4x10^6kg enters a 5km stretch of track with a vertical rise of 40m at a s speed of 1.0m/s and leaves at 3.0m/s. Assuming that frictional drag is negligible, find: a) Each term of the equation Win = delta K + delta U + Wout 2. Relevant equations Delta K = 1/2mvf^2 - 1/2mvi^2 Delta U = mghf - mghi Wout = work removed from the system such as air drag. Win = not sure?? 3. The attempt at a solution I found Wout and that's equal to 0. I found Delta K. Not too sure if I used the right velocities. Final velocity, i used 3.0m's and inital velocity, i used 1.0m/s. I found Delta U, with the final height being 40m and the initial height being 0m. Am i doing these correctly? Can someone guide me please???