On a level road, the maximum speed at which a car can take a circular turn of radius r without skidding is:
A√(gr)
B√(μgr)
Cμgr
Dgr/μ
Answer & Solution
Correct answer: B. √(μgr)
Friction supplies centripetal force: μmg ≥ mv²/r ⇒ v_max = √(μgr).
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