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A car is negotiating a curved road of ra...

A car is negotiating a curved road of radius R. The road is banked at angle `theta`. The coefficeint of friction between the tyres of the car and the road is `mu_(s)`. The maximum safe velocity on this road is

A

`sqrt(g R ""(mu_(s) + tan theta)/(1 - mu_(s) tan theta))`

B

`sqrt(( g mu_(s) + tan theta)/(R - 1 mu_(s) tan theta))`

C

`sqrt((g mu_(s) + tan theta)/(R^2 1 - mu_(s) tan theta))`

D

`sqrt(g R^2 "" (mu_(s) + tan theta)/(1 - mu_(s) tan theta))`

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The correct Answer is:
A
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