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A solid disc rolls clockwise without sli...

A solid disc rolls clockwise without slipping over a horizontal path with a constant speed `v`. Then the magnitude of the velocities of points `A, B` and `C` (see figure) with respect to a standing observer are, respectively,
.

A

`upsilon, upsilon` and `upsilon`

B

`2upsilon, sqrt(2)upsilon` and zero

C

`2upsilon, 2upsilon` and zero

D

`2upsilon, sqrt(2)upsilon` and `sqrt(2) upsilon`

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The correct Answer is:
B
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