A luggage handler pulls a suitcase of mass 19.1kg up a ramp inclined at an angle

Question

A luggage handler pulls a suitcase of mass 19.1kg up a ramp inclined at an angle 20.0 above the horizontal by a force of magnitude 147N that acts parallel to the ramp. The coefficient of kinetic friction between the ramp and the incline is 0.257. The suitcase travels a distance 3.95m along the ramp.
a-Calculate the work done on the suitcase by the force

b-Calculate the work done on the suitcase by the gravitational force.

c-Calculate the work done on the suitcase by the normal force

d-Calculate the work done on the suitcase by the friction force.
e-Calculate the total work done on the suitcase
f-If the speed of the suitcase is zero at the bottom of the ramp, what is its speed after it has traveled 3.95 along the ramp?

Explanation / Answer

1) work = F * d = 580.65 J
2) work = mgh = 252.87 J
3) Work done by normal force = 0 always
4) friction work =

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