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NEET Class neet Answered

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Asked by snowgaming267 | 21 Mar, 2024, 01:44: PM
answered-by-expert Expert Answer

 

Let us consider a rectangular plate of dimension  ( 2a x 2b ) as shown in figure

Moment of inertias about different axes as shown in figure are given below .

I1 = (1/12) M (4a2 ) = (1/3) M a2

I2 = (1/12) M (4 b2 ) = (1/3) M b2

I3 = (1/3) M a2  + M a2 = (4/3) M a2

I4 = (1/3) M b2 + M b2   = (4/3) M b2

If a < b , then  I1 is minimum

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