A 75-kg man pushes a crate 4.5 m up along a ramp that makes an angle of 17.5° with the horizontal. He exerts a force of 510 N on the crate parallel to the ramp and moves it at a constant speed.
Calculate the work done by man to move the crate, in joules. Be sure to include the work he does on the crate and on his body to get up the ramp.
2. Homework Equations
W = F cos theta d
The Attempt at a Solution
I calculated the work that he does on the box using that above equation but could not figure out what the secind part of the question is getting at[/B]