Nonconservative force?

Question

A constant horizontal force moves a 50 kg trunk 6.0 m up a 30° incline at constant speed. The coefficient of kinetic friction between the trunk and the incline is 0.20. What are (a) the work done by the applied force and (b) the increase in the thermal energy of the trunk and incline?

Answer 1

Go to the link below.  It is exactly the same as your problem except for the numbers.