# Meaning of greek symbols

1. Oct 22, 2010

### moondawg

1. The problem statement, all variables and given/known data

What does $$\mu$$ represent?
2. Relevant equations
f=$$\mu$$N

3. The attempt at a solution
I understand it is a coefficient but I don't understand what it stands for especially when being applied to Free Body Diagrams. Explain please?!

2. Oct 22, 2010

### pongo38

Could be coefficient of friction, the ratio of frictional force (f) to normal reaction (N)?