Physics Problem: Critical Angle for a Sliding Spool

A spool has an inner radius R1 and outer radius R2 with a string wrapped around the inner part.  What angle can you pull the string so that the spool slides without rolling?

I'm working through chapter summaries for introductory physics (algebra-based).  I'm using the Openstax online (free) textbook College Physics.  You can access this book here https://openstax.org/details/books/co...

Here is the playlist with all the videos and problems for this course.
Online Physics 1 2024

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• #physics
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• #torque
• #rotational_equilibrium
• #friction
• #sliding_spool