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Circular Motion: Circular Motion — Speed Change MCQ

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Circular Motion — Speed ChangeMediumQuestion 30648

Question

A particle in circular motion doubles its speed. The centripetal acceleration becomes:
  1. A
    Same
  2. B
    Double
  3. C
    4 times
    Correct
  4. D
    Half

Correct answer

4 times

Explanation

a_c = v²/r. If v → 2v: a_c → (2v)²/r = 4v²/r = 4×a_c.

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