Moment Of Inertia DOUBT

answer c

1 Answers

49
Subhomoy Bakshi ·

I for a solid sphere is 2Mr2/5

so I of each sphere abt its COM = 2/5* M *(R/2)2=MR2/10..

now applying parallel axis theorem..I for left wala sphere=MR2/10+ M(2R)2

total I=MR2/10+M(2R)2 + MR2/10=21MR2/5

hence option C...verify...

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