From: gehrab@gmail.com   
      
   On Sunday, October 29, 2023 at 2:40:57=E2=80=AFAM UTC-5, Tom Roberts wrote:   
   > On 10/28/23 1:02 PM, Luigi Fortunati wrote:   
   > > George Hrabovsky il 26/10/2023 11:12:16 ha scritto:   
   > >>> Yes, that's right, inertia is that property of bodies that makes   
   > >>> them go straight at uniform speed.   
   > >> No, inertia is the ability of a body to resist being accelerated.   
   > >> Its quantity is what we think of as inertial mass. It is a scalar.   
   > Actually, inertia does both -- it resists acceleration when a force is   
   > applied, and it makes an object move in a uniform straight line when no   
   > force is impressed on the object.   
      
   My only objection to this, is that mass is component of the momentum, and   
   momentum is what makes an object travel in a straight line until; acted   
   upon by an external force (which is the time derivative of the momentum).   
      
   George   
      
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