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From: Luigi Fortunati <fortunati.luigi@gmail.com>
Newsgroups: sci.physics.research
Subject: Re: Newton e Hooke
Date: Sat, 22 Feb 2025 18:13:51 +0100
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In my animation https://www.geogebra.org/m/rs4cfxzg body A of 5 particles collides inelastically with body B of 3 particles.

Before the collision, the total momentum p=+2 is entirely owned by body A, because body B has no positive momentum.

After the collision, it is true that the total momentum does not change (it always remains equal to p=+2), but it no longer belongs entirely to body A because 0.75 passes to body B.

In fact, at the end of the collision, the positive momentum p=+2 belongs "only" in part to body A (p=+1.25) and the rest has transferred to body B (p=+0.75).

How is it possible that, during the collision, there is a transfer of momentum from body A to body B if the action of body A on body B is *equal* to the opposite reaction of body B on body A?

And why does this transfer of momentum from A to B not occur in the first three instants and only occurs in instants 4 and 5?

Luigi Fortunati