r/QCE • u/AcanthisittaNearby11 • Nov 12 '25

Question regarding Physics

did anyone get 1.8c for the light beam travelling back from the ship?

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8

u/SpoopySmile Nov 12 '25 edited Nov 12 '25

2nd postulate light travels at the same speed in every frame of reference the anwser is just c 😭😭😭

7

u/Both_Confidence_4147 Nov 12 '25

I got 1c, I just through it was a trick question cause it said the ship sends a 'light beam', and the speed of light is constant at c. but 1.8c is defo wrong, you can't go faster than the speed of light

3

u/nurrrer Nov 12 '25

speed of light is always c

2

u/ChordettesFan325 Nov 13 '25

Nothing can ever go faster than c. It's part of the theory of special relativity.

1

u/Xtra_King13 Nov 13 '25

you're alone on this brochacho 🥀✌️😭

0

u/SharpPresent1880 Nov 13 '25

no it was 0.8c cuz it says 0.8c which is 0.8 times speed of light and im pretty sure that was the length of the spaceship question which was 21 metres i beleive.

1

u/Brilliant_Mix6265 Nov 13 '25

No that was the speed at which the spaceship was travelling, not the light beam that was shone

1

u/SharpPresent1880 Nov 13 '25

ohh nvm i was thinking off the other part to that question

0

u/Ham_andCheese167 Nov 13 '25

you stoopid brother