Question

Find the moment of inertia of a rectangular section of 40 mm width and 80 mm depth about the base.

a.

632×10⁴ mm⁴

b.

682×10⁴ mm⁴

c.

734×10⁴ mm⁴

d.

568×10⁴ mm⁴

Answer: (b).682×10⁴ mm⁴

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Q. Find the moment of inertia of a rectangular section of 40 mm width and 80 mm depth about the base.

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