---
title: "Two blocks are on a horizontal, frictionless surface. Block \\( A \\) is moving with an initial velocity of \\( v_0 \\) toward block \\( B \\), which is stationary, as shown above. The two blocks collide, stick together, and move off with a velocity of \\( \\frac{v_0}{3} \\). Which block, if either, has the greater mass?"
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url: "https://nerd-notes.com/ubq/82881/"
date_modified: "2025-03-18T06:58:49+00:00"
---

# Two blocks are on a horizontal, frictionless surface. Block \( A \) is moving with an initial velocity of \( v_0 \) toward block \( B \), which is stationary, as shown above. The two blocks collide, stick together, and move off with a velocity of \( \frac{v_0}{3} \). Which block, if either, has the greater mass?

Two blocks are on a horizontal, frictionless surface. Block \( A \) is moving with an initial velocity of \( v_0 \) toward block \( B \), which is stationary. The two blocks collide, stick together, and move off with a velocity of \( \frac{v_0}{3} \). Which block, if either, has the greater mass?

- **A.** Block \( A \)
- **B.** Block \( B \)
- **C.** Neither; their masses are the same.
- **D.** The answer cannot be determined without knowing the mass of one of the blocks.

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/82881/*