1. The problem statement, all variables and given/known data A boy drags a 100N sled up a 20degree slope at constant velocity. If the coefficient of friction between sled and hill is 0.2, what force must he exert at an angle of 35 degrees with respect to the hill? 2. Relevant equations What does 'respect to the hill' mean? 3. The attempt at a solution Im not sure where to start? I drew a FBD: perpendicular to slope I have mgcostheta going down and normal force going up perpendicular to slope. F is going to the right and fs is going down to the left. Is this correct?