A woman is pushing a box of mass 12.0 kg to the left across a horizontal floor. The woman exerts a constant force of magnitude
50.0 N on the box directly to the left, as shown in the picture, and the box is moving to the left as she is pushing it.
There is kinetic friction between the box and the floor, with $$\mu_k = 0.240$$.
(a) Draw a free-body diagram of the box. Label all forces clearly.
(b) Solve for the magnitude and direction of the acceleration of the box. Show your work.