Re: Relativistic invariance of accelerations?

On 2024-05-18 23:10:52 +0000, Richard Hachel said:

Is the acceleration invariant under change of reference frame?

No, except when the transformation in both reference frames.
In some cases the magnitude of the acceleration is the same
but the direction is not.

We imagine an accelerated rocket (starting from rest to simplify).
We then set x=(1/2)a.Tr²
Which will result in x=(c²/a).[sqrt(1+a²To²/c²)-1]
But let's change the frame of reference and assume another frame of reference R'
which sees the distance AB in R move away over O'x' where M is in accelerated movement from A towards B.

That does not make sense. A distance is a number and therefore in some
number space where nothing moves. And many of the symbols are undefined
but used as if they were defined.
--
Mikko