the lightweight turbine consists of a rotor which is powered from a torque applied at its center. at the instant the rotor is horizontal it has an angular velocity of 15 rad/s and a clockwise angular acceleration of 8 rad/s2. determine the internal normal force, shear force, and moment at a section through a. assume the rotor is a 50-m-long slender rod, having a mass of 3 kg/m