An 11.2 kg box is pulled at a constant velocity across a rough level floor by a 317 N force F directed 23.5o above the horizontal, through a displacement x of 5.65 m.
a) How much work is done by the force F?
b) How much work is done by the normal force?
c) How much work is done by gravity?
d) How much work is done by friction?
e) How much net work is done on the box?