A tractor pulls a sled a distance of 30 meter along level ground. The total weight of the sled and load is 22,050 Newton. The tractor exerts a constant 8,000 Newton force at an angle of 36.9o above the horizontal. A 5,00 Newton friction force opposes the sled's motion:
a) Determine the work done by friction?
b) Determine the work done by gravity?
c) Determine the work done by the tractor?
d) Determine the speed of the sled after it moves 30 meter?