1. The problem statement, all variables and given/known data A man on his bike have an initial velocity of 8.5m/s. He begins to go up an incline that has a vertical height of 5.2m. Once he reaches the top of the incline, he only has a velocity of 3.00m/s. The man and his bike combined weigh 80kg. What is the total work done on the man from the bottom of the incline to the top? 2. Relevant equations Ek1 + U1 + W = Ek2 + U2 3. The attempt at a solution 0.5(80kg)(8.5m/s)^2 + 0 + W = 0.5(80kg)(3m/s)^2 + 5.2m(9.81m/s^2)(80kg) W = 0.5(80kg)(3m/s)^2 + 5.2m(9.81m/s^2)(80kg) - 0.5(80kg)(8.5m/s)^2 W = 1550.96J But that is definitely the wrong answer. I can't think of any way that to get the right answer.