a MasteringPhysics: Chapter 'l X + 6 C i session,masteringphysicscoml . q n men tPl alVll (Chapter 11: Rotational Dynamics and Static Equilibrium Problem 11.58 II Review V Part A A student on a piano stool rotates freely with an angular speed of v 3.05 rev/s . The student holds a 1.05 kg mass in each As the student pulls hlS arms inward, his angular speed increases to 3.80 rev/s . How far are the masses from the axis of rotation at this time, considering the outstretched arm, 0.779 m from the axis of rotation. The masses to he points? combined moment of inertia of the student and the stool, ignoring the two masses, is 5.53 kg , m2 , a value that remains constant. d = 0.334 m Previous Answers V Correct V Part5 Calculate the initial kinetic energy 01 the system. K; = 0.347053 J Previous Answers Request Answer X Incorrect; Try Again V Partc a MasteringPhysics: Chapter '1 X + 6 C i session.masteringphysicscomi Cllrll'l'lplll'pl(\"VitalT'D: (Chapter 11: Rotational Dynamics and Static Equilibrium Problem 11.58 A student on a piano stool rotates freely with an angular speed of 3.05 rev/s . The student holds a 1.05 kg mass in each outstretched arm, 0.779 m from the axis of rotation. The combined moment of inertia of the student and the stool, ignoring the two masses, is 5.53 kg . m2 , a value that remains constant. II Review Calculate the initial kinetic energy 01 the system. .soo Ki = 0.347053 J Previous Answers Request Answer X Incorrect; Try Again V Part0 Calculate the final kinetic energy of the system. Kr = 0.400 J m Previous Answers RequestAnswer X Incorrect; Try Again Provide Feedback Next >