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Particle A moves along X-axis with a uni...

Particle A moves along X-axis with a uniform velocity of magnitude of m/s. Particle B moves with uniform velocity 20 m/s along a direction making an angle of `60^(@)` with the positive direction of X - axis as shown in the figure. The relativity velocity of B with respect to that of A is

A

10 m/s along X - axis

B

`10 sqrt(3)` m/s along Y-axis (perpendicular to A - axis)

C

`10sqrt(5)` m/s along the bisection of the velocity of A and B

D

30 m/s along negative X-axis

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