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Q. |
The moment of inertia of a thin disc of mass m and radius r, about an axis through its centre of gravity and perpendicular to the plane of the disc is |
A. | mr2 / 2 |
B. | mr2 / 4 |
C. | mr2 / 6 |
D. | mr2 / 8 |
Answer» A. mr2 / 2 |
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