Major difference of Inertial and non-inertial frame of reference ?

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Discussion Overview

The discussion revolves around the differences between inertial and non-inertial frames of reference, exploring definitions and implications in both Newtonian mechanics and general relativity. Participants examine the conditions under which a frame is considered inertial or non-inertial, as well as the consequences of these classifications.

Discussion Character

  • Conceptual clarification
  • Debate/contested
  • Technical explanation

Main Points Raised

  • Some participants propose that inertial frames are characterized by constant velocity and adherence to the law of inertia, while non-inertial frames involve acceleration and do not obey this law.
  • One participant notes that the definitions of inertial and non-inertial frames differ significantly between Newtonian mechanics and general relativity.
  • Another participant suggests that while there are differences between the two types of frames, labeling one as the "major" difference may depend on specific definitions used.
  • A detailed condition for a frame to be considered inertial is presented, involving the relationship between force, mass, and acceleration, indicating that all objects in the frame must satisfy this condition.

Areas of Agreement / Disagreement

Participants express differing views on the definitions and implications of inertial versus non-inertial frames, indicating that multiple competing perspectives remain without a clear consensus.

Contextual Notes

The discussion highlights the dependence on definitions and the context of Newtonian mechanics versus general relativity, which may affect interpretations of inertial and non-inertial frames.

jamesfirst
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Major difference of Inertial and non-inertial frame of reference ??

What is the major difference or differences of Inertial and non-Inertial frame of reference??


Is it only:

Inertial - Constant velocity, obeys the law of inertia

Non-inertial - Acceleration, disobeys the law of inertia
 
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The important thing to realize is that the term is defined in a completely different way in Newtonian mechanics than in GR. Jamesfirst's OP is a decent working definition according to Newtonian mechanics.
 


jamesfirst said:
What is the major difference or differences of Inertial and non-Inertial frame of reference??


Is it only:

Inertial - Constant velocity, obeys the law of inertia

Non-inertial - Acceleration, disobeys the law of inertia

there is difference and there is another difference.but there is no such thing as major difference (unless u define it).

so inertial frame
consider an object with mass m which is acted by fundamental force (i.e. gravitational or electric.) f.
now frame s would be inertial if
acceleration between the object and the frame = f/m.

if a frame don't satisfy the above equation then its a non inertial frame.

now if there are more objects then a inertial frame has to satisfy the equation for every object.
 

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