question (1 Viewer)

[ying123123]

A --------> travel at c
B-------> travel at c and shines a beam towards A

A will see the beam of light will travel at C

NOW

A --------> travel at c
B-------> travel at c/2 and shines a beam towards A

wat will A see the beam of light to be travling at?

 

[helper]

c, the speed of light is a constant.

 

[ying123123]

i was thinking its C
but its just very hard to picture it in my mind
can u just explain?

 

[香港!]

^ Just trust Mr Albert Einstein and know that C is a constant, no need to think too much for HSC Physics!!

 

[ying123123]

yeah true
no wonder they put letter C
as the constant

 

[Haku]

i am gonna explain it!!

here it is, try to understand.

in newtonian physics u learn to add vectors and minus vectors.
but in einsteins explaination speed of light is constant but at the same time do not contradict newtonian physics. This is because time and space is now a variable. so when an object travel at high velocities there time and distance measurement is different to the ones experienced when stationary. therefore for moving observers due to the changes in time and space cause their measurement of C to them is always a constant.