Two discs are mounted on frictionless bearings on a common shaft. The first disc has rotational inertia I and is spinning with angular velocity ω. The second disc has rotational inertia 2I and is spinning in opposite direction with angular velocity 3ω, as shown in figure. If the two discs are slowly forced towards each other along the shaft, until they couple. Then final common angular velocity is

Two discs are mounted on frictionless bearings on a common shaft. The

1.	Two discs are mounted on frictionless bearings on a common shaft. The first disc has rotational inertia I and is spinning with angular velocity ω. The second disc has rotational inertia 2I and is spinning in opposite direction with angular velocity 3ω, as shown in figure. If the two discs are slowly forced towards each other along the shaft, until they couple. Then final common angular velocity is
Answer» Two discs are mounted on frictionless bearings on a common shaft. The first disc has rotational inertia $I$ and is spinning with angular velocity $ω$ . The second disc has rotational inertia $2 I$ and is spinning in opposite direction with angular velocity $3 ω$ , as shown in figure. If the two discs are slowly forced towards each other along the shaft, until they couple. Then final common angular velocity is

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