Alexander Fufaev
My name is Alexander FufaeV and here I will explain the following topic:

Lever Rule Applied to a Machine with Wheel and Axle

Lever Rule Applied to a Machine with Wheel and Axle
Lever rule \( F_1 \, r_1 = F_2 \, r_2 \) applied to a machine with wheel and axle. Here \(r_1\) and \(r_2\) are the radii of two different wheels and \(F_1\) and \(F_2\) are the forces acting on the wheels perpendicular to the radius. The lever rule is the consequence of the conservation of angular momentum \( L_1 = L_2 \).