1. The problem statement, all variables and given/known data What power must a man of mass 85 kg have to bicycle 850m up a hill, inclined at 5.2° to the horizontal, at a constant speed of 15.6m/s? The force of friction on the man and the bicycle is 175N parallel to the incline. 2. Relevant equations 3. The attempt at a solution m= 85kg g=9.8m/ss v=15.6m/s θ= 5.2° F = 175N + mgsinθ = 175N + 75.497N Here I'm determining the forces required to overcome gravity and friction. = 250.497N P = F*v = 250.497N * 15.6m/s Here I took the calculated force and the velocity and determined the power. = 3900W How does it look?