Mathematics · Engineering Mechanics & Geometry
For a solid circular shaft of radius 'r', which of the following expressions correctly represents its polar moment of inertia (J) about the centroidal axis?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1J = πr48
- 2J = πr46
- 3J = πr44
- 4J = πr42✓
Correct answer
J = πr42
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