1. The problem statement, all variables and given/known data A sledge loaded with bricks has a total mass of 17.4 kg and is pulled at constant speed by a rope inclined at 19.2° above the horizontal. The sledge moves a distance of 20.0 m on a horizontal surface. The coefficient of kinetic friction between the sledge and surface is 0.500. (a) What is the tension in the rope? (b) How much work is done by the rope on the sledge? (c) What is the mechanical energy lost due to friction? 2. Relevant equations 3. The attempt at a solution I am having trouble finding the normal force with the pull at 19.2 degrees. If anyone could help in solving this problem it would be greatly appreciated.