Question

In a rectangle $ABCD,AB=21$ and $BC=1$. Axes $xx$ and $yy$ pass through centre of the rectangle. The moment of inertia is least about

• A. $DB$
• B. $BC$
• C. $xx$
• D. $yy$

Answer 1

The correct option is C $xx$

Mass distribution is less when axis is $xx$ so, $MI$ is least.

Hence, the answer is $xx.$