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Find the maximum speed at which a car ca...

Find the maximum speed at which a car can turn round a curve of `30 m` radius on a level road if coefficient of friction between the tyres and road is `0.4. Take g = 10 m//s^(2)`.

A

9.84 m/s

B

10.84 m/s

C

7.84 m/s

D

5.84 m/s

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The correct Answer is:
B
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Find the maximum speed at which a car can turn round a curve of 30 m radius on a level road if coefficient of friction between the tyress and road is 0.4. Take g = 10 m//s^(2) .

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What is the maximum speed with which an automobile can round an unbanked curve of radius 200 m without skidding if the coefficient of friction between tyre and road is 0.3 ? (g = 9.8 ms^(-2)) [Hint : Centripetal force = (mv^(2))/(r) = muN = mu mg ]

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