Question

The moment of inertia of a uniform circular disc of radius $R$ and mass $M$ about an axis touching the disc at its diameter and normal to the disc is :

• A. $\frac{1}{2}MR^2$
• B. $MR^2$
• C. $\frac{2}{5}MR^2$
• D. $\frac{3}{2}MR^2$

Answer 1

Answer: (D)

$\frac{3}{2}MR^2$

Answer 2

$I _{2}= I _{1}+ MR ^{2}=\frac{3}{2} MR ^{2}$