Physics · JEE | LAWS OF MOTION
हिन्दीWhat is the condition on the angle of banking \( \theta \) and coefficient of static friction \( \mu_s \) for a car to be parked safely on a banked road without slipping down?
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Correct answer · Option B
\( \tan\theta \le \mu_s \)
Explanation
For a parked car not to slide down under gravity, the component of weight down the plane \( mg\sin\theta \) must be balanced by maximum static friction \( \mu_s mg\cos\theta \), giving \( \tan\theta \le \mu_s \).