A circular disc of radius $R$ has a uniform thickness. A circular hole of diameter equal to the radius of disc has been cut out as shown. Distance of centre of mass of the remaining disc from point $O$ is
A circular disc of radius $R$ has a uniform thickness. A circular hole of diameter equal to the radius of disc has been cut out as shown. Distance of centre of mass of the remaining disc from point $O$ is
- A
$\frac{R}{14}$
- B
$\frac{R}{12}$
- C
$\frac{R}{8}$
- D
$\frac{R}{6}$
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