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What will be maximum speed of a car on a...

What will be maximum speed of a car on a road turn of radius 30 m, if the coefficient of friction between the tyres and the road is 0.4 ?

A

`10.84 m//s`

B

`9.84 m//s`

C

`8.84 m//s`

D

`6.84 m//s`

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