1. The problem statement, all variables and given/known data The following link is a rough sketch of what I need help with, followed by the directions. http://s11.photobucket.com/albums/a1...nt=Physics.png [Broken] be sure it's zoomed in. The information provided is the following. "The Block shown in (a) slides with constant speed under the action of the force shown. (a) How large is the retarding friction force? (b) What is the coefficient of kinetic friction between the block and the floor? 2. Relevant equations Fwx=Ff Fwy=Fn 3. The attempt at a solution Blarg.....No idea where to even start.