Rolling Axles
1. Introduction While browsing YouTube one day, I came across a video covering a problem from the 2016 JEE Advanced physics exam, an engineering entrance exam in India. The problem had several parts connecting to the following physical setup: In its simplest form, we can consider a circular wheel of radius connected by its center to one end of a rigid rod of length , with the other end fixed on the ground. The wheel is able to roll without…