- #1
KallaNikhil
Let there be 2 astronauts A and B in uniform relative motion and they are moving towards each other. Let A be moving in a spaceship of length L and there are 2 clocks ca1 and ca2 attached to the front and back of the spaceship respectively and let clock of B be cb. The moment when the front of the A's spaceship crosses B then B sets it's time cb equal to ca1. Now from A's perspective when the back of the spaceship crosses B , ca2 must have elapsed more time than cb. But from B's perspective ca2 must have elapsed less time than cb (after including length contraction of spaceship from B's perspective). How can there be an inconsistency in the time measurements of ca2 ? (time elapsed is the time taken for the spaceship to cross B)