Oh lord that must've been a nightmare! Making this all the more impressive!
i should try finding the project file but it was so fiddly.... i could have made it even cooler if the program wasnt actively battling me. half the time the program would want to apply force to every astroid in the map at once. i think the main thing that was bugging me was i couldnt reference the collided objects velocity so everything has a set bounce speed rather than being realistic...