# Momentum common symbol

• October 22nd 2012, 09:27 AM
Stuck Man
Momentum common symbol
What is the most common symbol for momentum? Wikipedia says p. Some people seem to use rho.
• October 22nd 2012, 09:58 AM
MarkFL
Re: Momentum common symbol
When I was a student, it was $p$.

We used $\rho$ for density.
• October 23rd 2012, 11:23 AM
topsquark
Re: Momentum common symbol
It's usually p or P. P is typical for a "total momentum."

On the other hand if we're talking about a collision problem, I've also seen q and Q when p and P have already been used.

-Dan