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Angular velocity of a particle omega=(t^...

Angular velocity of a particle `omega=(t^(2)+1)` rad/s changes with time. Radius of circle is `2m` in which particle is revolving then acceleration `(m//s^(2))` of particle at `t=1s` is

A

`x_(1)ltx_(2)`

B

`y_(2)gtx_(1)`

C

`alpha gtbeta`

D

`y_(1)gty_(2)`

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