Question

The ABC is a triangular plate of uniform thickness. The sides are in the ratio shown in the figure. $I_{AB},I_{BC}$ and $I_{CA}$ are the moments if inertia of the plate about AB,BC and CA respectively?

• A. $I_{AB}+I_{BC}=I_{CA}$
• B. $I_{CA}$ is maximum
• C. $I_{AB}>I_{BC}$
• D. $I_{BC}>I_{AB}$

Answer 1

The correct option is D $I_{BC}>I_{AB}$

Depends upon farthest point as $bc$ is the farthest point from axis and $AB$ is nearest.

$I_{BC}>I_{AB}$