A trunk of mass m = 1.100 kg is pushed a distance d = 32.0 cm up an incline with an angle of inclination theta = 26.0 ° by a constant horizontal force P = 150. N. The coefficient of kinetic friction between the trunk and the incline is 0.330.
a) Calculate the work done on the trunk by the applied force P
b) Calculate the work done on the trunk by the frictional force. Be careful - you will need to write down a free-body diagram and calculate the normal force for this part !
c) Calculate the work done on the trunk by the gravitational force.