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On a dry road , the maximum permissible ...

On a dry road , the maximum permissible speed of car in a circular path is 12`ms^-1`. IF the road becomes wet, then the maximum speed is `4sqrt2ms^-1`. IF the coefficient of friction for dry road is `mu`, then that for the wet road is

A

`2/9mu`

B

`mu/3`

C

`(2mu)/3`

D

`3/4mu`

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The correct Answer is:
A
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