---
title: "The two blocks of masses \\( M \\) and \\( 2M \\) shown above initially travel at the same speed \\( v \\) but in opposite directions. They collide and stick together. How much mechanical energy is lost to other forms of energy during the collision?"
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url: "https://nerd-notes.com/ubq/82855/"
date_modified: "2025-03-18T06:44:58+00:00"
---

# The two blocks of masses \( M \) and \( 2M \) shown above initially travel at the same speed \( v \) but in opposite directions. They collide and stick together. How much mechanical energy is lost to other forms of energy during the collision?

The two blocks of masses \( M \) and \( 2M \) travel at the same speed \( v \) but in opposite directions. They collide and stick together. How much mechanical energy is lost to other forms of energy during the collision?

- **A.** \[ \frac{1}{2} M v^2 \]
- **B.** \[ \frac{3}{4} M v^2 \]
- **C.** \[ \frac{4}{3} M v^2 \]
- **D.** \[ \frac{3}{2} M v^2 \]

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/82855/*