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Disk Moment of Inertia

Find inertia of a uniform solid disk about its central normal axis.

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Local calculations. Results are estimates, not professional advice.

Moment of inertia

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Idealized classical model in SI units. Check sign conventions and assumptions; not a certified engineering design calculation.

Formula

I=½mr²

Find inertia of a uniform solid disk about its central normal axis.

Worked example

Mass (kg)
10
Disk radius (m)
0.5
Moment of inertia
1.25 kg·m²

Scope and limitations

Idealized classical model in SI units. Check sign conventions and assumptions; not a certified engineering design calculation.

Inputs are checked for missing values and allowed ranges. A result outside the finite numeric range is not displayed. Rounding affects display, while the calculation uses the model’s numeric precision.

Check your units and assumptions before relying on a result. Changing a label does not convert a currency or physical unit.

Formula version: e08b36bf4b14 · Example checked:

Methodology

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