A chair of mass 12.0 kg is sitting on the horizontal floor; the floor is not frictionless. You push on the chair with a force that is directed at an angle 37.0˚ below the horizontal, and the chair slides along the floor.
(a) Draw a clearly labelled free-body diagram for the chair.
(b) Use your diagram and Newton's laws to calculate the normal force that the floor exerts of the chair.
