A rod AD is fixed to a board (end D is fixed). It is coconnected by 2 wires AC and AB. X and y axis passes through D . Distance between C and x-axis is 5.5 ft and of B from x-axis is 4 ft. Perpendicular Distance between B and C is 4 ft.B and C are equidistant from the Z-axis. A wieght W is attached at A . Distance of A from Y- axis is 2.5 ft and along Y - axis is 6 ft.Find W maximum .. Find the force develped along strut AD.