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Circular Motion: Centrifugal Pseudo Force MCQ

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Centrifugal Pseudo ForceMediumQuestion 30636

Question

A coin on a rotating turntable slides outward when friction is insufficient. In the ground frame, this is because:
  1. A
    Centrifugal force exceeds friction
  2. B
    There is insufficient centripetal force
    Correct
  3. C
    The coin's inertia exceeds gravity
  4. D
    Gravity cannot act horizontally

Correct answer

There is insufficient centripetal force

Explanation

In the ground frame, there is no centrifugal force. The coin moves outward because there is not enough centripetal (inward) force (friction) to maintain circular motion.

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