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Two particles A,B are moving on two conc...

Two particles A,B are moving on two concentric circles of radii `R_1)` and `R_2` with equal angular speed `omega`. At`t=0`,their positions and direction fo motion are shown in the figure :

A

`omega(R_1+R_2)hati`

B

`-omega(R_1+R_2)hati`

C

`omega(R_2-R_1)hati`

D

`omega(R_1-R_2)hati`

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