You don't need to do part a. (a) State the full Torsion Formula, listing 5 important assumptions. (b) The 1000 mm long steel tube, AB, shown in Figure Ql, has a shear modulus G = 81 kN/mm^2 and an...

(a) State the full Torsion Formula, listing 5 important assumptions. (b) The 1000 mm long steel tube, AB, shown in Figure Ql, has a shear modulus G = 81 kN/mm^2 and an outer diameter of 50mm and an inner diameter of 40mm. If its end is tightened against the rigid support at A using a torque wrench at end B, determine the shear stress developed in the material at the inner and outer walls along the central portion C of the tube when the two 80N forces arc applied to the wrench. (c) Determine the rotation of the tube at end B due to the loading.