1.3 A sample of radioactive material, at rest in the laboratory, ejects two electrons in opposite directions. One of the electrons has a speed of 0.6 c and the other has a speed of 0.7c, as measurered by a laboratory observer. According to classical velocity transformations, what will be the speed of one electron as measured from the other?
Let observer O be at rest with respect to the laboratory and let observer O’ be at rest with rest with speed 0.6 c (taken in the positive directtion). Then, from the Galilean velocity transformation,
U’x = Ux – v = 0.7c – 0.6c = 1.3c
This problem demonstates that velocities than the speed pf light are possible with the Galilena transformations. A result that inconsistent with Special Relativity.