Question
A sledge loaded with bricks has a total mass of 17.3 kg and is pulled at constant speed by a rope inclined at 20 degree above horizontal. The sledge moves a distance of 19.7 m on a horizontal surface. The coefficient of kinetic friction between sledge and surface is 0.500.
(a) What is tension in the rope?
(b) How much work is completed by the rope on the sledge?
(c) What is mechanical energy lost because of friction?