Final answer:
The net force acting on the box is 2 N to the left, obtained by subtracting the 4 N force to the right from the 6 N force to the left.
Step-by-step explanation:
The net force acting on the box is the vector sum of all the forces acting on it. In this case, we have two forces acting in opposite directions: a 6 N force to the left and a 4 N force to the right. The net force can be calculated by subtracting the smaller force from the larger force, because they are acting in opposite directions.
Net force = 6 N (left) - 4 N (right) = 2 N (left).
Thus, the net force acting on the box is 2 N to the left.