Mechanical Engineering: Ch 12: Moment of Inertia (49 of 97) Semi-Circle @ Center of Mass

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In this video I will find the moment of inertia (and second moment of area) I(C.M.)=? rotating around the C.M. parallel to the x-axis, of a semi-circle.

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Sir, why you using minus sign instead of plus

tariqultoki
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determine by direct integration the moment of inertia of a semicircular area with respect to their centroidal axis?

Sir is this question solved by you?

tawsifridoy
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Note: Icm=A((r²/4)-(a6r²/9pi²). Forgot the last pass. But, great.

lohanexugoi
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Please help me on the step how to calculate 'D' please sir

Realistic