alleryStart learning →A ring of mass M and radius R. Its moment of inertia about a tangent in the plane of the ring is
A3MR²/2
BMR²
C2MR²
D5MR²/4
Answer & Solution
Correct answer: A. 3MR²/2
About a diameter I = MR²/2; the parallel axes theorem adds MR² for the tangent, giving 3MR²/2.
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