1. The problem statement, all variables and given/known data Found a pretty fun question on power from one of my friends old physics exams just wanted to see if I was doing it right so far. 3. The attempt at a solution So the first thing I did was draw a free body diagram and used Newtons Second law so ƩFx: F - (250 + 0.7v^2) - mgsin10 = ma Says that the driving force F must overcome the frictional force, so then ma = 0 and F = 250 + 0.7v^2 + mgsin10. A little stumped here, I am trying to find out the velocity, but I have two unknowns and one equation (please don't give me the answer, I want to solve it myself)!