Question

Suppose the ski patrol lowers a rescue sled carrying an injured skiier, with a combined mass of 75kg, down a 60 degree slope at constant speed. The coefficient of kinetic friction between the sled and the snow is 0.100.

A) How much work, in joules, is done by friction as the sled moves 28m along hill?

B) How much work, in joules, is done by the rope on the sled over this distance?

C) What is the work, in joules, done by the gravitational force on the sled?

D) What is the net work done on the sled, in joules?

Please show work for I am having issues doing this problem, and I have a test soon and a question like this will be on it Thanks in advance and please show all work. And the formulas used.

Answer 1