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A car is moving on a horizontal circula...

A car is moving on a horizontal circular tracck of radius `0*2` km with a constant speed. If coefficient of friction between tyres of car and road is `0*45`, then speed of a 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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