A box is being moved with a velocity (v) by a force (p)(parallel to v) along a level horizontal floor. The normal force is (Fn), the kinetic frictional force is (fk), and the weight of the is box is (mg).

Question

A box is being moved with a velocity (v) by a force (p)(parallel to v) along a level horizontal floor.  The normal force is (Fn), the kinetic frictional force is (fk), and the weight of the is box is (mg).
Draw a free-body diagram of this situation