Answer:
c' = - c
Explanation:
given data:
speed of rocket ship is 0.7 c
from the information given in the question, earth is rest and rocket ship pass the earth with velocity of 0.7c
speed of photon measured by physicists will be
by using lorentz transform equation we get
[tex]c' = \frac{(-0.7c) + (c+(-1_))}{1 - (\frac{-0.7c^2}{c^2})}[/tex]
[tex]c' = \frac{-0.7c -c}{1+0.7}[/tex]
c' = - c
