Hey everyone. I'm new to this site and was wondering if u can help me with a work and power problem. Question: A 60kg student runs at a constant velocity up the incline described in the diagram in 4.5s. Calculate the power output of the student. The diagram was a picture of a right-angled triangle with hypotenuse length 4 meters. The hypotenuse is the ramp, and the ramp is raised to a height of 2.5m (also the length of the vertical leg). The student is running up the ramp. My Work: Since he is running at constant velocity, acceleration = 0m/s/s. F=ma, so F = 0 N. W=Fd, so W = 0 J. P=W/t, so P = 0 W. The answer from the back of the book was P = 326.67 W. I know the student is doing work in terms of his muscles having a tensional force, but I don't think that is the way to go with this problem at all. Anyways, any help will be appreciated thanks. BTW, there was no information regarding friction.