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From: Luigi Fortunati <fortunati.luigi@gmail.com>
Newsgroups: sci.physics.research
Subject: Re: Newton's 3rd law is wrong
Date: 14 Oct 2024 10:22:25 GMT
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In the animation https://www.geogebra.org/m/h7zhvtkj there is a thin 
sliding wall stopped at the point x=0 and there are two bodies A and B 
whose masses we can make equal with the appropriate "Same mass" button 
or variable with the appropriate slider.

When the two masses are equal, the sliding wall remains still both 
before and after the collision, because the two opposing forces it 
receives are equal.

When one mass is greater than the other, after the collision the 
sliding wall starts moving (accelerates) in the direction of the 
greater mass.

Click on the "Collision" button to see what happens at the moment of 
the collision, where for just an instant two opposing blue and red 
forces are activated.

Is it correct to say that the blue force acts on the wall and *also* on 
body B, and that the red force acts on the wall and *also* on body A?

Luigi Fortunati