Two thin discs, each of mass M and radius r, are attached as shown in the figure, to form…
Physics · JEE Advanced · NTA Exams — Rotational Motion
Two thin discs, each of mass M and radius r, are attached as shown in the figure, to form a rigid body. The rotational inertia of this body about an axis perpendicular to the plane of disc B and passing through its centre is:
- 2Mr2
- 3Mr2
- 4Mr2
- 5Mr2
Answer
(D) 5Mr2
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