---
title: "An object is located in front of a flat, stationary plane mirror and moves directly toward the mirror at a constant speed \\(v_0\\) relative to the mirror. Which of the following correctly identifies the speed of the image relative to the object and provides the correct justification?"
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url: "https://nerd-notes.com/ubq/116778/"
date_modified: "2026-08-04T06:09:39+00:00"
---

# An object is located in front of a flat, stationary plane mirror and moves directly toward the mirror at a constant speed \(v_0\) relative to the mirror. Which of the following correctly identifies the speed of the image relative to the object and provides the correct justification?

An object is located in front of a flat, stationary plane mirror and moves directly toward the mirror at a constant speed \(v_0\) relative to the mirror. Which of the following correctly identifies the speed of the image relative to the object and provides the correct justification?

- **A.** The relative speed is \(v_0\) because the image distance behind the mirror is always equal to the object distance in front of the mirror.
- **B.** The relative speed is \(v_0\) because the speed of light reflected by the mirror is independent of the motion of the object.
- **C.** The relative speed is \(2v_0\) because the separation distance between the object and its image decreases at half the rate at which the object approaches the mirror.
- **D.** The relative speed is \(2v_0\) because the separation distance between the object and its image decreases at twice the rate at which the object approaches the mirror.

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/116778/*