Two disks are rotating about the same axis. Disk A has a moment of inertia of 1.74 kg·m2 and an angular velocity of + 6.11 rad/s. Disk B is rotating with an angular velocity of - 6.99 rad/s. The two disks are then linked together without the aid of any external torques, so that they rotate as a single unit with an angular velocity of - 1.51 rad/s. The axis of rotation for this unit is the same as that for the separate disks. What is the moment of inertia of disk B?

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter10: Rotational Motion
Section: Chapter Questions
Problem 11P: A disk 8.00 cm in radius rotates at a constant rate of 1200 rev/min about its central axis....
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Two disks are rotating about the same axis. Disk A has a moment of inertia of 1.74 kg·m2 and an angular velocity of + 6.11 rad/s. Disk B is rotating with an angular velocity of - 6.99 rad/s. The two disks are then linked together without the aid of any external torques, so that they rotate as a single unit with an angular velocity of - 1.51 rad/s. The axis of rotation for this unit is the same as that for the separate disks. What is the moment of inertia of disk B?

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