14. A massless rod is kept at total equilibrium under the influence of four forces acting on it at the points A, B, C and D as shown in the figure. The magnitude of Fz is 200 N and the magnitude of Fa is 150 N. (a) (3 pts) The two conditions for the system's total equilibrium are which of the following? The net force acting on the system is zero. The change in the system's momentum is nonzero. No forces are acting on the system. The net torque acting on the system 0.4m 0.2m is zero. S The net torque acting on the system must be positive. (b) (6 points) What is the magnitude of the force F,? (c) (6 points) What is the magnitude of the force FA