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If a given point P is in contact with gr...

If a given point P is in contact with ground initially and wheel of radius R is in pure rolling, then the displacement of point P when point P reaches topmost of the sphere for the first time will be

A

`pi R `

B

`2 pi R `

C

`( sqrt(pi^(2) + 1 ))R `

D

`( sqrt( pi^(2) + 4)) R `

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