1. The problem statement, all variables and given/known data What power must a man of mass 85kg have to bicycle 850m up a hill, inclined at 5.2 degrees to the horizontal, at a constant speed of 15.6 m/s? The force of friction on the man and the bicycle is 175N parallel to the incline. 2. Relevant equations Fnet=ma W=delta E 3. The attempt at a solution I do not know where to start because i do not know the mass of the bicycle.