First slide

Circular motion in horizontal plane

Question

A car is travelling along a curved road of radius r. If the coefficient of friction between the tyres and the road is $μ$ , the car will skid if its speed exceeds

Moderate

A

$2 \sqrt{μrg}$
B

$\sqrt{3 μrg}$
C

$\sqrt{2 μrg}$
D

$\sqrt{μrg}$

Solution

$\frac{{mv}^{2}}{r} = μmg, v_{max} = \sqrt{μ_{s} rg}$

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