Problem #6: The rigid pole and cross-arm assembly is supported by the three cables shown. A turnbuckle at D is tightened until it induces a tension T in CD of 1.2 kN. 1-Express T as a vector. 2-Does it make any difference in the result which coordinate system is used? 3-Determine the vector expression for the moment of the 1.2-kN tension about point O and about the pole z-axis. (Find each moment in two different ways). 1.5 m T-1.2kN