Quote:
Originally Posted by GTB_an_Owl
Hi Paul
i have to question your answer to Q1
if A and B are both travelling at the speed of light and A is 500 metres in front of B, the light from B will never catch A.
to my mind it will always be 500 metres behind A ?
and i would love to be in ship A - cause i could shoot B - but B could not shoot me
geoff
|
Agreed, - surely the light emitted from the headlight in Q1 wouldn't even move ahead of the headlight at all, as it is travelling at the speed of light already. Unless of course it's "speed of light + speed of light" if the velocities are added.
And the bullet being fired from the rear ship, - well if the velocities aren't added then it would disappear off backwards at a hell of a rate instantly and would therefore go straight thru the back of the gun and the person firing it as well. If the velocities are added, then what would happen when the bullet looses it's own velocity? Would it just 'stop' relatively speaking? Meaning in fact that it is now moving along at the speed of light since it doesn't have any 'extra' velocity left from being fired?
Just my 2c as a totally unscientific person
