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If a car is travelling at 20 m//s on a c...

If a car is travelling at 20 `m//s` on a circular road of radius 400 m, then the radial acceleration will be

A

`1m//s^2`

B

`10m//s^2`

C

`0.1 m//s^2`

D

`0.01 m//s^2`

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