From: fortunati.luigi@gmail.com   
      
   Richard Livingston domenica 09/10/2022 alle ore 17:35:01 ha scritto:   
   >> In animation https://www.geogebra.org/m/adsgahwf   
   >   
   > You are missing the inertial force ("red") of the "rigid" wagon weight   
   against the  applied "blue" force.   
      
   Is the red force I added to my animation okay?   
      
   > The "rigid" "red" force would be greater than the corresponding red force on   
   the water wagon.   
      
   Ok.   
      
   Is the acceleration of the two vagons the same?   
      
   Luigi   
      
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