Rotational MotionMedium
Question
Four point masses, of a value m are placed at the corners of a square ABCD of side l.The moment of interia of this system about an axis passing through A and parallel to BD is
Options
A.2ml2
B.√3ml2
C.3ml2
D.ml2
Solution
Inn′ = 2 × m
+ m(√21)2= ml2 + 2ml2 = 3ml2
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