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Question 30664
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Circular Motion: JEE — Banked Road Forces MCQ

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JEE — Banked Road ForcesHardQuestion 30664

Question

On a banked road, if speed > ideal speed, which force prevents outward skidding?
  1. A
    Friction acts up the incline (inward component)
    Correct
  2. B
    Gravity acts inward
  3. C
    Normal force alone provides extra centripetal force
  4. D
    Friction acts down the incline

Correct answer

Friction acts up the incline (inward component)

Explanation

When v > v_ideal, the required centripetal force exceeds what banking provides. The extra is provided by friction acting up the slope (toward the inner edge of the curve, i.e., with inward horizontal component).

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