A student on a piano stool rotates freely with an angular speed of 3.05 rev/s. The student holds a 1.00 kg mass in each outstretched arm, 0.759m from the axis of rotation. The combined moment of inertia of the student and the stool, ignoring the two masses, is 5.43 kg•m^2, a value that remains constant. A. Calculate the initial kinetic energy of the system  B. Calculate the final kinetic energy of the system

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Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.