Find the moment of inertia of a uniform rign of mass M and radius R about a diameter.

Options

A. `2Mr^(2)`
B. `3//2Mr^(2)`
C. `Mr^(2)`
D. `1//2Mr^(2)`

Answer

B

Explanation

MOI about diameter of ring `I.= (Mr^(2))/(2)`
MOI about tangent `I= (Mr^(2))/(2) + Mr^(2)= (3)/(2) Mr^(2)`