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A body is moving with constant speed,in ...

A body is moving with constant speed,in a circle of radius `10m`.The body completes one revolution in `4` s.At the end of 3rd second,the displacement of body (in `m` ) from its starting point is:

A

`15 pi`

B

`10sqrt(2)`

C

`30`

D

`5 pi`

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The correct Answer is:
B
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