Two disks are mounted on low-friction bearings on a common shaft. The first disc has rotational inertia I and is spinning with angular velocity $ \omega $. The second disc has rotational inertia 2I and is spinning in the same direction as the first disc with angular velocity 2 $ \omega $as shown. The two disks are slowly forced toward each other along the shaft until they couple and have a final common angular velocity of:
A) 5 $ \omega $/3
D) $ \omega $
E) 3 $ \omega $

Question

Two disks are mounted on low-friction bearings on a common shaft. The first disc has rotational inertia I and is spinning with angular velocity  $ \omega $. The second disc has rotational inertia 2I and is spinning in the same direction as the first disc with angular velocity 2 $ \omega $as shown. The two disks are slowly forced toward each other along the shaft until they couple and have a final common angular velocity of: 
A) 5 $ \omega $/3 
D) $ \omega $ 
E) 3 $ \omega $

Quizplus · Accepted Answer

The Answer of Two disks are mounted on low-friction bearings on a common shaft. The first disc has rotational inertia I and is spinning with angular velocity  $ \omega $. The second disc has rotational inertia 2I and is spinning in the same direction as the first disc with angular velocity 2 $ \omega $as shown. The two disks are slowly forced toward each other along the shaft until they couple and have a final common angular velocity of: 
A) 5 $ \omega $/3 
D) $ \omega $ 
E) 3 $ \omega $

Two Disks Are Mounted on Low-Friction Bearings on a Common ω \omega ω

Two Disks Are Mounted on Low-Friction Bearings on a Common $\omega$