A student sits at rest on a piano stool that can rotate without friction. The moment of inertia of the student-stool system is 3.7 kg · m2. A secondstudent tosses a 1.4-kg mass with a speedof 2.2 m/s to the student on the stool, who catches it at a distance of 0.44 mfrom the axis of rotation. The final angular speed is 0.341 rad/s.
Find initial KE and final KE.