Actually, I am aware of the relativistic velocity addition formula, however, what I am unable to understand is what happens to the distances. For an observer inside the innermost trailer, for him he should travel the 10m in 1s, and so should all the trailers, so an observer on each trailer...
Let us consider a hypothetical scenario, where we are able to translate any mass at a constant speed of 10m/s w.r.t to a given frame of reference. For simplicity, we are going to assume that the object is at rest initially.
Case 1 -
Now, consider 2 points A and B at a distance of 10m, and our...