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The angular speed of a particle, moving ...

The angular speed of a particle, moving along a circle of radius 20cm, increases from 2 rad/s to 40 rad/s in 19 s. The ratio of its centripetal acceleration to tangential acceleration at the end of 19 secs

A

`400:1

B

`1:800`

C

`1:400`

D

`800:1`

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