4 ms·
In railroad design it is important for the track to not be a curved segment of a circle (starting from a straight line), as the acceleration forces start sudden
by user_7832 2y ago
In railroad design it is important for the track to not be a curved segment of a circle (starting from a straight line), as the acceleration forces start suddenly (aka a high jerk). So this concept exists and is well known in some circles (heh).