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## Homework Statement

A vertical cylinder is sitting against a wall. It has a weight of 20N and no given radius. A force is applied tangentially in a vertical direction on the side not against the wall. The coefficient of friction is 0.499 for all surfaces. What is the maximum force so that the cylinder will not rotate?

## Homework Equations

τ= Fr-f(bottom)r-f(wall)r=0

f=μN

## The Attempt at a Solution

I set up the necessary equations and I thought that since there wasn't a normal force applied horizontally, the wall didn't have any friction so I neglected it and answered 9.98. That wasn't correct.

Sorry about the sideways picture.