A teacher pulls a box of books on a horizontal floor with a force of 264 N directed 33.1 above the horizontal. The coefficient of kinetic friction between the box and the floor is pk = 0.274. The mass of the box and books is 47.0 kg. a. (Show all your work) What is the normal force that the floor exerts on the box? In your partial credit work, give the Newton 2 equation in the vertical (perpendicular to floor) direction consistent with this problem. b. (Show all your work) What is the horizontal (parallel to the floor) Newton 2 equation for this setup? c. (Show all your work) What is the magnitude of acceleration for the box? To continue, please give the normal force (part a) in N to continue then turn in work for part a, b, and c