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Rigid Body Dynamics: MOI — Rod End MCQ

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MOI — Rod EndMediumQuestion 30337

Question

The MOI of a thin rod (mass M, length L) about one end, perpendicular to its length, is:
  1. A
    ML²/12
  2. B
    ML²/6
  3. C
    ML²/3
    Correct
  4. D
    ML²/4

Correct answer

ML²/3

Explanation

I = ML²/12 (centre) + M(L/2)² (parallel axis) = ML²/12 + ML²/4 = ML²/3.

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