The coefficient of friction between the tyres and the road is 0.25. The maximum speed with which a car can be driven round a curve of radius 40 m without skidding is (assume g=10 ms⁻²)

Options

(a) 40 ms⁻¹
(b) 20 ms⁻¹
(c) 15 ms⁻¹
(d) 10 ms⁻¹

Correct Answer:

10 ms⁻¹

Explanation:

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