---
title: "A boulder is raised above the ground so that its potential energy is \\(550 \\, \\text{J}\\). Then it is dropped. Assuming \\(92 \\, \\text{J}\\) of energy was lost to air resistance, what is the kinetic energy of the boulder just before it hits the ground?"
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url: "https://nerd-notes.com/ubq/23232/"
date_modified: "2025-10-04T02:57:16+00:00"
---

# A boulder is raised above the ground so that its potential energy is \(550 \, \text{J}\). Then it is dropped. Assuming \(92 \, \text{J}\) of energy was lost to air resistance, what is the kinetic energy of the boulder just before it hits the ground?

A boulder is raised above the ground so that its potential energy is \(550 \, \text{J}\). Then it is dropped. Assuming \(92 \, \text{J}\) of energy was lost to air resistance, what is the kinetic energy of the boulder just before it hits the ground?

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/23232/*