The collision of two “infinitely small” points is quite another problem. Have some similarities, too.
For two points on a colliding path, the action and reaction force are present and of equal size and oppposite directions.
My example can have finite size balls or zero size mass points, but there is no reaction force to be seen. At least, I don’t.
The collision of two “infinitely small” points is quite another problem. Have some similarities, too.
For two points on a colliding path, the action and reaction force are present and of equal size and oppposite directions.
My example can have finite size balls or zero size mass points, but there is no reaction force to be seen. At least, I don’t.