1. The problem statement, all variables and given/known data **Rollercoaster is being built and the values are the specifications Determine the power needed to raise the cars to the top of the hill and have them travelling at the wanted speed. Height of hill: 65m Speed at top of hill: 2.5m/s Time to raise cars: 40 seconds Total mass of cars: 1250kg State all assumptions. 2. Relevant equations P = mgh/t Eg = mgh Ek = 1/2mv^2 3. The attempt at a solution P = mgh / t = 1250(9.8)(65) / 40 = 19906.3W Assuming constant speed and no friction. I dont know how to finish the question.