posted by lib on .
A sled loaded with bricks has a total mass of 23.0 kg and is pulled at constant speed by a rope inclined at 40.0o above the horizontal. The sledge moves a distance of 12.0 m on a horizontal surface. The coefficient of kinetic friction between the sledge and surface is 0.350 .
(a) What is the tension in the rope?
(b) How much work is done by the rope on the sled?
(c) What is the magnitude of the force of friction?