(6) Non-Planar Equilibrium Analysis (10 pts) A tower 70 m tall is tethered by three cables, as shown in Fig. 6a and its associated free body diagram is given in Fig. 6b. The tower's base is xed to the ground, and we model the base of the tower as one point (not four). If the tension in each of the cables is 400 N and the tower is in equilibrium, what loads act on the tower at its base? (10 NS) Figure 6a. Situation Figure 6b. Free-body Diagram