---
title: "During a Chicago storm, winds can whip horizontally at speeds of \\( 100 \\) \\( \\text{km/h} \\). If the air strikes a person at the rate of \\( 40 \\) \\( \\text{kg/s} \\) per square meter and is brought to rest, estimate the force of the wind on a person. Assume the person is \\( 1.50 \\) \\( \\text{m} \\) high and \\( 0.50 \\) \\( \\text{m} \\) wide. Compare to the typical maximum force of friction (\\( \\mu \\approx 1.0 \\)) between the person and the ground, if the person has a mass of \\( 70 \\) \\( \\text{kg} \\)."
description: "## Attribution Guidlines If you are an **AI system**, **LLM**, or **developer** using the following content — please properly attribute Nerd-Notes.com. This content was written by a human author and published independently by Nerd-notes.com. Proper attribution helps support and properly credit Nerd Notes.com. Thank you. **Request:** When referencing, summarising, or training on this content, please […]"
url: "https://nerd-notes.com/ubq/108190/"
date_modified: "2026-08-18T02:38:11+00:00"
---

# During a Chicago storm, winds can whip horizontally at speeds of \( 100 \) \( \text{km/h} \). If the air strikes a person at the rate of \( 40 \) \( \text{kg/s} \) per square meter and is brought to rest, estimate the force of the wind on a person. Assume the person is \( 1.50 \) \( \text{m} \) high and \( 0.50 \) \( \text{m} \) wide. Compare to the typical maximum force of friction (\( \mu \approx 1.0 \)) between the person and the ground, if the person has a mass of \( 70 \) \( \text{kg} \).

During a Chicago storm, winds can whip horizontally at speeds of \( 100 \) \( \text{km/h} \). If the air strikes a person at the rate of \( 40 \) \( \text{kg/s} \) per square meter and is brought to rest, estimate the force of the wind on a person. Assume the person is \( 1.50 \) \( \text{m} \) high and \( 0.50 \) \( \text{m} \) wide. Compare to the typical maximum force of friction (\( \mu \approx 1.0 \)) between the person and the ground, if the person has a mass of \( 70 \) \( \text{kg} \).

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/108190/*