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A uniform circular disc has a radius of ...

A uniform circular disc has a radius of 20cm. A circular disc of radius 10cm is cut concentrically from the original disc. The shift in centre of mass is

A

`(1)/(200)cm`

B

`(7)/(300)cm`

C

`(1)/(400)cm`

D

zero

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The correct Answer is:
D
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