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A particle is moving on a circular path of radius r with uniform velocity v. The change in velocity when the particle moves from P to Q is `(anglePOQ=40^@`)

A

`2v cos 40^(@)`

B

`2v sin 40^(@)`

C

`2v sin 20^(@)`

D

`2v cos 20^(@)`

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The correct Answer is:
A
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