To find the net force applied to the rope, we assign positive values to the forces to the left and negative values to the forces to the right.
The left side pulls with a force of 200 N (positive value), and the right side pulls with a force of 150 N (negative value). Therefore, we can express this as:
Net force = Force left - Force right
Net force = 200 N - 150 N
Net force = 50 N
Since we assigned left as the positive direction, the net force to the left is +50 N.
The correct answer is:
B. 50 N