Originally Posted By: paul
that makes absolutely no sense.

Correct.

Quote:

twice the velocity !

no matter what the momentum is of the 2 bodies as long as one of them is more massive than the other.


"much more massive" is not the same as "more massive"
">>" is not the same as ">"

Again, it's an approximation. It's never correct. It gets closer and closer to correct the more massive the body is. So we better not use it.