Find moment of inertia of uniform half disc about an axis perpendicular to plane and passing through its centre of mass
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mass of complete disc = M + M = 2M
the MOI of complete disc about the given axis is = 2MR2/2 = MR2
thus MOI of Half disc = MR2/2
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3
Answer:
MR^2/2
Explanation:
Mass of full discs be 2M
therefore its moment of inertia be 2MR^2/2 =Mr^2
therefore Moment of inertia of half disc be MOI of full disc ÷2 = MR^2/2
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