A hollow circular tube with a 2.3-cm I.D. and 2.5-cm O.D. is rigidly supported at its ends. A 2.5 kN-m torque is applied at the center of this tube. What is the maximum shear stress acting on this tube?
(a) 2.87Mpa
(b) 4.27 Mpa
(c) 6.92 Mpa
(d) 10.2 Mpa
(a) 2.87Mpa
(b) 4.27 Mpa
(c) 6.92 Mpa
(d) 10.2 Mpa