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Answer (Detailed Solution Below) Option 2 : 3/2 MR2 India's Super Teachers for all govt. exams Under One Roof Enroll For Free Now
The correct answer is option 2) i.e. 3/2 MR2. CONCEPT:
The moment of inertia of the circular disc about the central axis, IZ =
CALCULATION: We have to find the moment of inertia along the line CD which is along the edge of the disc and normal to it. The moment of inertia of the circular disc about the central axis (AB), IZ = From parallel axis theorem, the moment of inertia about an axis passing from the edge of the disc, I = IC + Mh2 From the figure, h = R ⇒ IZ + MR2 = + MR2 = MR2 India’s #1 Learning Platform Start Complete Exam Preparation
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