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A disc of mass m and radius R has a conc...

A disc of mass m and radius R has a concentric hole of radius r Find its moment of inertia about an axis through its centre and perpendicular to its plane?

A

`m/2(R-r)^(2)`

B

`m/2(R^(2)-r^(2))`

C

`m/2(R+r)^(2)`

D

`m/2(R^(2) + r^(2))`

Text Solution

Verified by Experts

The correct Answer is:
D
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