Science, asked by Ranjanrishabh5184, 1 year ago

A circular disk of moment of inertia it is rotating in a horizontal plane, about its symmetry axis, with a constant angular speed ωi Another disk of moment of inertia Ib is dropped coaxially onto the rotating disk. Initially the second disk has zero angular speed. Eventually both the disks rotate with a constant angular speed ωf . The energy lost by the initially rotating disc to friction is –

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Answered by Anonymous
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