yeah,,and i shall quote the question.yorky said:dude ur overthinking it, it contracts, but only observers in different frame of reference can see contraction
hence, greater distance is measured~?Calculate this distance as measured in the laboratory frame of reference
lol yeah.psychopath said:i dunno yorky man .. i put .19 as well .. cos that's what i think it is .. but then i guess what they're saying makes sense .. cos it's the electron moving .. not the tube .. if it was the tube moving .. then the tube woud shrink .. and hence the distance would shrink .. but since the electron is moving .. it's the electron that will shrink .. not the distance it has to travel .. if anything .. the distance is the same .. OMG IT'S THE SAME! maybe .. ahahah who knows .. but yeh i'm inclined to believe it's 0.3 .. cos you know how in space travel .. the distance that the astronauts see themselves travelling is much shorter and they do it in a faster time .. so isnt it the same for th eelectron? cos just ignore the tube.. just pretend it's moving from point A to point B .. if it's going super fast .. the distance will contract .. and it will measure it as .24 .. but at rest it measures it at .3 ..
my main problem now with the question is that the question clearly states the elcetron starts at restfrom the cathode .. so doesnt that mean that the electron coulda measured the distance from rest as well as while moving??? i dunno .. i hope i just lose one mark cos i at least got the equation and stuff right ..
im currently not caring nemore.Glen88 said:Think of a train, if the electron was the train having itself contracted as it is an object travelling at relativistic speeds, when it looks out the window at the distance it is travelling, it would detect that the outside world or its track, has become longer, 0.24m. Therefore, we see it as being smaller than 0.24. Therefore = 0.19m.
Something tells me i'll be explaining this again.
How about I contract your head Jared. Btw your closer than these 0.3 guys.rolfey24 said:man glen ur a tool.u frigen hitler. it was 0.18.
becoming longer? its length contraction.Glen88 said:it would detect that the outside world or its track, has become longer.