3. Two horizontal disc rotates freely about a vertical

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3. Two horizontal disc rotates freely about a vertical axis passing through their centers. The moments of inertia about this axis drives are J1 and J2, and the angular speed ω1 and ω2. After the fall of the upper to the lower disk drive, both by friction between their surfaces begin to rotate as a unit. Find the steady angular velocity disk and the increment of the kinetic energy of the rotating system.

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Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)


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