A car is moving on a horizontal curved road with radius 50… — JEE Main 2023 Physics PYQ

JEE Main 2023 · 29 Jan · Shift 1

A car is moving on a horizontal curved road with radius 50 m. The approximate maximum speed of car will be, if friction between tyres and road is 0.34. [take

g = 10 \ \text{ms}^{-2}

]

A.
$22.4 \ \text{ms}^{-1}$
B.
$17 \ \text{ms}^{-1}$
C.
$3.4 \ \text{ms}^{-1}$
D.
$13 \ \text{ms}^{-1}$

Show answer and solution

Correct option: D

Solution

For circular motion on a flat road, friction provides centripetal force: μmg = mv²/r, so v_max = √(μrg) = √(0.34 × 50 × 10) = √170 ≈ 13 ms⁻¹.

[JEE Main 2023 · 29 Jan · Shift 1]

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