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Question 30516
JEE Physics · Hard

Center of Mass, Momentum and Collision: COM — Hollow Ring MCQ

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COM — Hollow RingHardQuestion 30516

Question

A uniform circular ring has its centre of mass at:
  1. A
    One edge
  2. B
    The geometric centre (centre of the ring)
    Correct
  3. C
    1/3 of the radius from centre
  4. D
    Outside the ring

Correct answer

The geometric centre (centre of the ring)

Explanation

By symmetry, the centre of mass of a uniform ring lies at its geometric centre — even though no material is actually there.

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