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JEE Main 2023 (29 Jan, Shift 1) · Level Road & Rotating Platform

Level Road & Rotating Platform question from JEE Main 2023 (29 Jan, Shift 1)

Q7JEE Main 2023 · 29 JAN · SHIFT 1Easy

Level Road & Rotating Platform

A car is moving on a horizontal curved road with radius 50 m. The approximate maximum speed of car will be, if the coefficient of friction between tyres and road is 0.34. [take g = 10 ms $^{-2}$ ]

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Answer: (b)

$v_{max} = \sqrt{\mu r g}$
$v_{max} = \sqrt{0.34 \times 50 \times 10} = \sqrt{170} \approx 13$ m/s
So the answer is (b) 13 m/s.

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