---
title: "Two blocks, A and B, are connected by a light string that passes over a frictionless pulley. Block A, of mass \\( 10 \\) \\( \\text{kg} \\), rests on a rough plane that makes an angle of \\( 45^{\\circ} \\) with the horizontal, while block B, of mass \\( 17 \\) \\( \\text{kg} \\), hangs vertically. Starting from rest, what is the minimum coefficient of static friction between block A and the plane required to keep the system in static equilibrium?"
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url: "https://nerd-notes.com/ubq/101245/"
date_modified: "2025-09-20T12:08:38+00:00"
---

# Two blocks, A and B, are connected by a light string that passes over a frictionless pulley. Block A, of mass \( 10 \) \( \text{kg} \), rests on a rough plane that makes an angle of \( 45^{\circ} \) with the horizontal, while block B, of mass \( 17 \) \( \text{kg} \), hangs vertically. Starting from rest, what is the minimum coefficient of static friction between block A and the plane required to keep the system in static equilibrium?

Two blocks, A and B, are connected by a light string that passes over a frictionless pulley. Block A, of mass \( 10 \) \( \text{kg} \), rests on a rough plane that makes an angle of \( 45^{\circ} \) with the horizontal, while block B, of mass \( 17 \) \( \text{kg} \), hangs vertically. Starting from rest, what is the minimum coefficient of static friction between block A and the plane required to keep the system in static equilibrium?

![Diagram](https://nerd-notes.com/wp-content/uploads/2025/09/nerd-notes-multibody-and-incline-problem-1024x535.png)

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/101245/*