1,2000KM
600KM....those are my guesses....
Actually physically A birrd doesn't fly that fast to my knowledge.........wait what am I saying...(Falcon 120KM)
Wait a minute if both trains are going the same speed away from each other the measurement of distaqnce would be the same Circunfirance as the Earth.....and tell they cross again
So I would mulitply 1,2000KM times the Circumfirance of the Earth then measure off in sec.s, to min.s, to hrs.,etc.
|