21. A collisional cascade follows as their relative velocities became large enough to produce catastrophic impacts. 22. The magnitude of relative velocity cannot equal or exceed, so only subluminal speeds are allowed. 23. Relativity is ONLY relevent at huge relative velocities . 24. Holds, allowing the rotation matrix to be defined completely in terms of the relative velocities and. 25. Fex, the relative velocity is high and divergent? 26. Here, the strain rate is simply the relative velocity divided by the distance between the plates. 27. Population I stars have regular elliptical orbits of the galactic centre, with a low relative velocity . 28. I conclude that neutrinos are irresistible and I am immovable ( at any relative velocity ). 29. In the simplest case of two inertial frames the relative velocity between enters the transformation rule. 30. Of course relative velocity is symmetric, and in accordance with relativity, time dilation is symmetric too.