1.

A hollow shaft outside diameter 120 mm and thickness 20 mm. Find polar moment of inertia.

A. 16.36 × 10⁶ mm⁴
B. 18.45 × 10⁶ mm⁴
C. 21.3 × 10⁶ mm⁴
D. 22.5 × 10⁶ mm⁴
Answer» B. 18.45 × 10⁶ mm⁴


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