A 0.125-m-diameter and 1.5-m-long circular shaft has a flywheel at one end and rotates a...

A 0.125-m-diameter and 1.5-m-long circular shaft has a flywheel at one end and rotates at 240 rpm. The shaft is suddenly stopped at the free end. Determine the maximum shear stress and the maximum angle of twist produced by the impact. It is given that the shaft is made of steel with G=80.5 GPa,v=0.3, the weight of the flywheel is W=1.09 kN, and the flywheel’s radius of gyration is m. [Note that kinetic energy represent the angular velocity, acceleration of gravity, torque, and angle of twist, respectively.]