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If a particle A is moving along a straig...

If a particle A is moving along a straight line with velocity 3m/s and another particle B has a velocity 5m/s at an angle of `60^@` to the path of A then the velocity B relative to A is

A

`sqrt(39)m/s

B

`sqrt(19)m/s`

C

19m/s

D

none of the above

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The correct Answer is:
B
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