From: richalivingston@gmail.com   
      
   On Wednesday, July 13, 2022 at 4:50:42 AM UTC-5, Luigi Fortunati wrote:   
   > When Newton's bucket starts to rotate, the water slowly starts to   
   > rotate as well and accelerates outwards due to the centrifugal force.   
   >   
   > But the centrifugal force is ONLY in the rotating reference and not in   
   > the inertial one.   
   >   
   > So, how is the centrifugal acceleration of water justified EVEN in the   
   > inertial reference where the centrifugal force is not there?   
      
   "Centrifugal force" is a fictitious  force, it doesn't exist.  The only   
   real force is whatever is causing the object (water molecules in this   
   case) to follow a curved path.  The object is not at rest in any   
   inertial frame.   
      
   Rich L.   
      
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