From: eaglesondouglas@gmail.com   
      
   On Tuesday, November 14, 2017 at 3:38:46 AM UTC-5, Luigi Fortunati wrote:   
   > Libor 'Poutnik' Stríž lunedì 13/11/2017 alle ore 23:29:07 ha scritto:   
   >> This centrifugal force is a normal reactive force.   
   >>   
   >> What is meant as centrifugal force being apparent force   
   >> is in the context of non inertial, rotating coordinate systems (CSs).   
   >>   
   >> There exists 3 apparent forces in rotating CSs.   
   >>   
   >> Coriolis force, related to ther object velocity.   
   >> Centrifugal force, related to the object distance to the axis.   
   >> Euler force, related to the CS angular acceleration.   
   >>   
   >> Additionally, there can be other apparent forces   
   >> related to the acceleration of CS centre   
   >> or to tilting of the rotation axis.   
   >   
   > Force does not "appear", force "is" (or is not)!   
   >   
   > The force is not to punch, the force is to "strike"!   
   >   
   > --   
   >   
   >   
   > Luigi Fortunati   
      
   In airplanes a turn has the force of the wing push the   
   aircraft in the opposite direction.  In classical centrifugal   
   force the pulling of the rope causes the force on the object.   
   Grabbing a rope to spin the object implies an oscillative   
   action of the hand to keep the force occurring.   
      
   Push or pull causes a force.   
      
   The question then becomes what happens when the hand ceases   
   pulling? The spin down of the system occurs.  What is the   
   centrifugal decay function?   
      
   What happens when the rope is tied to an airplane?   
   I read of how Australian Bush pilots lower pails of cargo   
   while circling.  A tight spin allows a rope extending from   
   the aircraft to stay stationary on the ground.  So   
   a rope tied to the circling aircraft has zero tension.   
      
   Making a decay function the only question.  Is there a   
   distinction between decay in zero gravity and Earth   
   surface gravity?   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)