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The maximum speed with which a car drive...

The maximum speed with which a car driven round a curve of radius 18 m without skidding (where ,`g=10ms^(-2)` and the coefficient of friction between rubber tyres and the roadway is 0.2)is

A

`36.0 km//h`

B

`21.6 km//h`

C

`18.0 km//h`

D

`14.4 km//h`

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