A .0125 m meter and 1.5 m long circular shaft has a fly wheel at one end and rotate at 240 rpm. The shaft is suddenly stopped at the free end. Determine the maximum shear stress and maximum angle of twist produced by the impact. it is give n that the shaft is made of steel with G=80.5 GPa, v=.3, the weight of the fly wheel is W=1.09KN, and the flywheel's radius of gyration is r=.35m. [Note that kinetic energy Ek = Ww^2r^2/2g = T/2. here w, g, T, something represent that angular velocity, acceleration of gravity, torque and angle of twis, respectively.]