# How momentum/energy is distributed in a elastic collision? [closed]

We know from conservation of momentum or energy that energy (lets think about one quantity at a time) is conserved before and after collision. But how the energy is distributed between the bodies? I mean $1+3=4$ otherwise we can say $2+2=4$. Which distribution would be preferable?

• Well I think, the distribution will be known if the angle between the initial and finale directions are known. – Self-Made Man Nov 14 '13 at 13:49
• That is manifestly dependent on the reference frame you use. – dmckee --- ex-moderator kitten Nov 14 '13 at 15:10