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

  1. 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
     
  2. jcsd
  3. ghwellsjr

    ghwellsjr 5,106
    Science Advisor
    Gold Member

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

    Do you want a simple answer? Then read the first five posts of this thread:

    https://www.physicsforums.com/showthread.php?t=437784

    Do you want the most complex answer imaginable? Then read to the end of the thread.
     
  4. bcrowell

    bcrowell 5,805
    Staff Emeritus
    Science Advisor
    Gold Member

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

    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.
     
  5. Re: Major difference of Inertial and non-inertial frame of reference ??

    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 dont 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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