2) The steel, thin-walled open cross section shown below is transmitting torque T. The angle of twist per unit length of each leg can be determined separately using the following equation 3T 01 = GLC Where for this case, i = 1, 2, 3, and T represents the torque in leg . Moreover, T = = 3 Goc Go Lc and Tmax = GOCmax 3 i=1 C C3 T Li L3 L2 For the following dimensions and with a maximum shear stress of 12 kpsi, determine (a) the torque transmitted by each leg and then the entire section and (b) the angle of twist per unit length 1 3 C1 = in, L1 =- 16 in, c 4 5 1 1 = in, L = 1 in, C3 = in, L3 == -in 8 16 8