# Momentum in SR

1. Jul 18, 2009

### alex_rodin

Is it possible to deduce the expression for momentum using only Einstein postulates in 3D?

2. Jul 18, 2009

### clem

I would say no (but maybe you can), and then would say why?

3. Jul 18, 2009

### alex_rodin

Thanks. This is a pure interest. :)

Last edited: Jul 19, 2009