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Q.
For the adjoining diagram, the correct relation between $I_1,I_2$ and $ I_3$ is ( $I$ - moment of inertia)
AIPMTAIPMT 2000System of Particles and Rotational Motion
Solution:
Moment of Inertia of a triangle lamina about a
$
\text { side }=\frac{ mh ^2}{6}
$
where $h$ is height of lamina w.r.t that side
height of lamina w.r.t $BC =4$
height of lamina wr.t $AB =3$
So $I_{B C} > I_{A B}$
$
I _3 > I _1
$
