My understanding of physics is pretty weak these days, and I am trying to understand what should happen in simple 2d simultaneous elastic collisions of objects in a few toy theoretical cases (ignoring things like real world back and forth micro collisions, spin etc):
1) Object A hits an immovable wall W, as object B hits A, and as object C hits B
W C
| |
A – B
2) Object A hits an immovable wall W, as object B hits A, and as object C hits A
W C
| /
A – B
I vaguely remember …