Solidworks Friction / Force Analysis

I have a solidworks motion analysis of a differential. This works perfectly. What I want to do now is analyse the friction and rotary forces involved on the parts. 1. The friction imposed on the shaft entering the differential. 2. The force involved on the cogs. 3. The force involved on the casing. All of these functions are built into solidworks's motion analysis tool, but because im new to solidworks, I havent been able to work out how to do it.