Seven identical circular planar disks, e...

Seven identical circular planar disks, each of mass M and radius R are welded symmetrically as shown. The moment of inertia of the arrangement about the axis normal to the plane and passing through the point P is :

`(181)/2 MR^2`

`19/2 MR^2`

`55/2 MR^2`

`73/2 MR^2`

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