# Linear/angular momentum formulas

1. Jul 12, 2006

### dopey9

Does anyone know the formulas for

(1) linear momemtum
(2) angular momentum

for the situtation of two spacecrafts colliding in space or in orbit

thankz

2. Jul 12, 2006

### Staff: Mentor

That is not very simple.

Are the collisions elastic or inelastic, and then one needs to know the impact parameter, i.e. how far from the combined CM both spacecraft CMs are.

An inelastic collision is described, and as DocAl asked, what is 'conserved' in this collision?

Last edited: Jul 13, 2006
3. Jul 13, 2006

### dopey9

What do mean by 'CM'?

4. Jul 13, 2006

### neutrino

Centre of Mass.