Final answer:
The net force on the box is calculated by subtracting the force of friction from the applied force, resulting in a net force of 15 Newtons to the right.
Step-by-step explanation:
The net force on the box is the total force taking into account both the force applied and the force of friction opposing the movement. To find the net force, we subtract the smaller force (friction) from the larger force (applied force). In this case, the applied force is 25 Newtons to the right, and the force of friction is 10 Newtons to the left. Therefore, the net force is:
Net force = Applied force - Friction force
Net force = 25 N - 10 N
The result is a net force of 15 Newtons to the right.