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A car is moving on a horizontal circular...

A car is moving on a horizontal circular track of radius 0.2 km with a constant speed. If coefficient of friction between tyres of car and road is 0.45, then maximum speed of car may be [Take `g=10 m//s^(2)`]

A

15 m/s

B

30 m/s

C

20m/s

D

40m/s

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The correct Answer is:
B
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