---
title: "Four identical lead balls with large mass are connected by rigid but very light rods in the square configuration shown in the preceding figure. The balls are rotated about the three labeled axes. Which of the following correctly ranks the rotational inertia I of the balls about each axis?"
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url: "https://nerd-notes.com/ubq/39404/"
date_modified: "2025-03-07T10:37:37+00:00"
---

# Four identical lead balls with large mass are connected by rigid but very light rods in the square configuration shown in the preceding figure. The balls are rotated about the three labeled axes. Which of the following correctly ranks the rotational inertia I of the balls about each axis?

Four identical lead balls with large mass are connected by rigid but very light rods in the square configuration shown in the preceding figure. The balls are rotated about the three labeled axes. Which of the following correctly ranks the rotational inertia \(I\) of the balls about each axis?​

![Diagram](https://nerd-notes.com/wp-content/uploads/2024/06/4.png)

- **A.** [katex]I_B > I_A = I_C[/katex]
- **B.** [katex]I_A > I_C = I_B[/katex]
- **C.** [katex]I_C > I_A > I_B[/katex]
- **D.** [katex]I_C > I_A = I_B[/katex]

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/39404/*