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anjali SHARMA Grade: 12
        

I have a problem in solving the following question, Can some one provide me the detailed solution of it,


The moment of inertia of a uniform semicircular disc of mass M and radius r about a line perpendicular to the plane of the disc through the centre is ...?

8 years ago

Answers : (3)

dev bhatnagar
8 Points
										

This a simple conceptual question I think following can help you


Mass of semicircular disc = M


Suppose there is a circular disc of mass 2M, then


Moment of intertia of circular disc = 1/2(2M)R2


Moment of intertia of circular disc = 1/2(2M)R2 = MR2


=> So, Moment of intertia of semi-circular disc = (1/2)MR2

8 years ago
sowmya thandra
8 Points
										

can i get to know the detail information abt calculating moment of inertia

8 years ago
Tripti Arora
11 Points
										The above answer is right but from wrong method because moment of inertia is same for any arc or any part of disc it is not that if disc is half then mass is also half and Moi also half
										
2 months ago
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