---
title: "A solid disk has a mass \\( M \\) and radius \\( R \\). What is the moment of inertia about an axis that is perpendicular to the plane of the disk and passes through its edge?"
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url: "https://nerd-notes.com/ubq/104409/"
date_modified: "2025-11-02T14:11:29+00:00"
---

# A solid disk has a mass \( M \) and radius \( R \). What is the moment of inertia about an axis that is perpendicular to the plane of the disk and passes through its edge?

A solid disk has a mass \( M \) and radius \( R \). What is the moment of inertia about an axis that is perpendicular to the plane of the disk and passes through its *edge*? Hint: the moment of inertia about the disk center is given as \(I_{center}=\frac{1}{2}M R^{2}\).

- **A.** \[ M R^{2} \]
- **B.** \[ 2 M R^{2} \]
- **C.** \[ \dfrac{1}{2} M R^{2} \]
- **D.** \[ \dfrac{2}{5} M R^{2} \]
- **E.** \[ \dfrac{3}{2} M R^{2} \]

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/104409/*