- #1
- 257
- 4
Lets suppose we have a observer O and two objects A and B a speed is 0.5c and B speed is 0.3c than we can calculate other relative speed acoording to these informations.We know that (according this info B sees A going to 4/17c but we can pretty sure thats true because we cant ask. him How can O predict this speed or he know that theres special relativity and nothing is really what it seem.