The moment of inertia of a ring about a tangent is 4kgm2. What is the moment of inertia about an axis passing through the centre of the ring and perpendicular to its plane? Mass of the ring is 2kg & diameter is 2m. a) 2kgm2 b) 4kgm2 c) 8kgm2 d) 1kgm2

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