---
title: "A 0.035 kg bullet moving horizontally at 350 m/s embeds itself into an initially stationary 0.55 kg block. Air resistance is negligible. "
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url: "https://nerd-notes.com/ubq/22729/"
date_modified: "2025-10-16T20:12:17+00:00"
---

# A 0.035 kg bullet moving horizontally at 350 m/s embeds itself into an initially stationary 0.55 kg block. Air resistance is negligible. 

A 0.035 kg bullet moving horizontally at 350 m/s embeds itself into an initially stationary 0.55 kg block. Air resistance is negligible.

**Part a)** What is their velocity (in m/s) just after the collision? *(2 points)*

**Part b)** Three students are debating which object (the bullet or the block) has the greater change in momentum. - Student 1 argues that the bullet had the greater change in momentum since is slowed down by a greater factor compared to the block. - Student 2 argues that the block has the greater change in momentum because it started from rest. - Student 3 argues that both objects had the same change in momentum since they both experienced equal forces in the same time interval. Who is correct? Justify your answer. *(2 points)*

**Part c)** The bullet-embedded block slides on a horizontal surface with a 0.30 kinetic coefficient of friction. What is its velocity after sliding 8 meters? *(4 points)*

**Part d)** The bullet-embedded block now strikes and sticks to a stationary 2.00 kg block. How far (in m) does this combination travel before stopping? *(4 points)*


*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/22729/*