A steel shaft is fixed at A and is subjected to the torques as shown. Segment AB has a diameter of 70 mm and segment BC has a diameter of 25 mm. Given the Shear Modulus is 77 GPa determine the angle of twist at C in degrees. 150 N.m B C 1.5 m 0.5 m 100 N.m

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Torsion

In mechanical engineering, torque, torsion, and twisting moment are three of the most important concepts which have different meanings. Torque is the consequence of a moment of a force that produces an angular acceleration in a body or induces rotational kinetic energy in a body. For instance, in an automobile, the power transmission shaft is a body that is always under rotation due to the external torque acting on it, this torque is created by the engine.