​A 2.5 kg box in a laboratory setup slides 2.7 cm down chute that is inclined ​52.0o below the horizontal. The coefficient of kinetic friction between ​ ​box and the chute’s surface is 0.40. Calculate the work done on the ​box by (a) friction, (b) gravity and (c) the normal force. (d) What is ​the net work done on the box?