Ljusets hastighet är inte beroende av vilket hastighet du färdas i tror jag eftersom den är konstant kommer den vara ca 300 000 000 m/s oavsett vilken hastighet du färdas i.
Exempel:
Om jag färdas i 200 000 000 m/s och den framför mig färdas i 250 000 000 m/s. Om jag då skickar en ljussignal så kommer den framför mig att uppmäta hastigheten på signalen till 300 000 000 m/s. Dvs ljuskällan och observatörens hastighet är inte relevant.
Rätta mig om jag har fel.
einstein
Citat:
``If I pursue a beam of light with the velocity c (velocity of light in a vacuum), I should observe such a beam of light as a spatially oscillatory electromagnetic field at rest. However, there seems to be no such thing, whether on the basis of experience or according to Maxwell's equations. From the very beginning it appeared to me intuitively clear that, judged from the standpoint of such an observer, everything would have to happen according to the same laws as for an observer who, relative to the earth, was at rest. For how, otherwise, should the first observer know, i.e., be able to determine, that he is in a state of fast uniform motion? One sees that in this paradox the germ of the special relativity theory is already contained. Today everyone knows, of course, that all attempts to clarify this paradox satisfactorily were condemned to failure as long as the axiom of the absolute character of time, viz., of a simultaneous, unrecognizedly was anchored in the unconscious. Clearly to recognize this axiom and its arbitrary character really implies already the solution to the problem.''
Citat:
In 1905 he realised how it could be that light always goes at the same speed no matter how fast you go. Events that are simultaneous in one reference frame will happen at different times in another that has a velocity relative to the first. Space and time cannot be taken as absolute. On this basis Einstein constructed the theory of special relativity, which has since been well confirmed by experiment.
Dvs för dig i bilen kommer du inte märka någon skillnad.
http://math.ucr.edu/home/baez/physics/Relativity/SpeedOfLight/headlights.html