On a recent zoom meeting many were using the term MU and so realized we hadn't added a 'What is' topic on it. Q: What is MU?
A: MU is a term used for the coefficient of Friction.
Now you may ask: What is the coefficient of Friction?
The coefficient of friction (fr) is a number that is the ratio of the resistive force of friction (Fr) divided by the normal or perpendicular force (N) pushing the objects together. It is represented by the equation: fr = Fr/N.