Four ropes are tied to a stake, and each is pulled toward a compass direction, N, S, E, or W. A force of 7 N is applied to the rope pulled toward the east. Forces of 18, 26, and 45 N are applied toward the south, west, and north, respectively.
1. What is the direction of the net force exerted on the stake by the ropes?
2. What is the magnitude of the net force exerted on the stake by the ropes?