A trunk of mass m = 1.800 kg is pushed a distance d = 185 cm up an incline with an angle of inclination theta = 25.0 ° by a constant horizontal force P = 300. N (see figure). The coefficient of kinetic friction between the trunk and the incline is 0.0900.
A. Calculate the work done on the trunk by the frictional force.
B. Calculate the work done on the trunk by the gravitational force.