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From: Luigi Fortunati <fortunati.luigi@gmail.com>
Newsgroups: sci.physics.research
Subject: Re: Inertia and third principle
Date: Mon, 22 Jul 2024 09:56:42 PDT
Organization: A noiseless patient Spider
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Approved: Jonathan Thornburg [remove -color to reply]" <dr.j.thornburg@gmail-pink.com (sci.physics.research)
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In my animation https://www.geogebra.org/m/qterew9m the momentum of 
body A before the collision is p=mv=15v.

After the collision, the momentum of body A is reduced to 
p=m*(1/4)v=15*(1/4)v=(15/4)v=3.75v

During the collision, body A lost a momentum equal to 15v-3.75v=11.25v

Where did this momentum lost by body A during the collision go?

Luigi Fortunati

[[Mod. note -- 
Hint: What is body B's mass?  What was its velocity before the collision?
What is its velocity after the collision?
-- jt]]