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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 an angle theta. The coefficient of friction between the tyres of the car and the road is `mu_(s)` . The maximum safe velocity on this road is:

A

`sqrt(QR((mu_(s)+tantheta)/(1-mu_(s)tantheta)))`

B

`sqrt((Q)/(R)((mu_(s)+tantheta)/(1-mu_(s)tantheta)))`

C

`sqrt((Q)/(R^(2))((mu_(s)+tantheta)/(1-mu_(s)tantheta)))`

D

`sqrt(QR^(2)((mu_(s)+tantheta)/(1-mu_(s)tantheta)))`

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The correct Answer is:
A
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