d = InI A student on a piano stool rotates freely with an Submit Request Answer angular speed of 3.05 rev/s . The student holds a 1.45 kg mass in each outstretched arm, 0.789 m from the axis of rotation, The combined moment of inertia of the student and the stool, ignoring the two Part B masses, is 5.23 kg . m' , a value that remains constant. Calculate the initial kinetic energy of the system. AEd 0 E ? K Submit Request Answer Part C Calculate the final kinetic energy of the system. AEd K Submit Request Answer Provide Feedback