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Two particles A and B are moving with co...

Two particles A and B are moving with constant velocities `V_(1)=hatj` and `v_(2)=2hati` respectively in XY plane. At time t=0, the particle A is at co-ordinates (0,0) and B is at (-4,0). The angular velocities of B with respect to A at t=2s is (all physical quantities are in SI units)

A

`(1)/(2)rad//s`

B

`2rad//s`

C

`4rad//s`

D

`1rad//s`

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The correct Answer is:
D
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