Fred and George are 19.0 years of age when they left earth to travel to a distant planet 12.0 light-years away. Assume that the planet and earth are at rest with respect to each other. The twins depart at the same time on different spaceships. Fred travels at a speed of 0.900c and George travels at 0.500c. (a) According to the theory of special relativity, what is the difference between their ages when they meet again at the earliest possible time?
Fred and George are 19.0 years of age when they left earth to travel to a distant planet 12.0 light-years away.
Assume that the planet and earth are at rest with respect to each other. The twins depart at the same time on
different spaceships. Fred travels at a speed of 0.900c and George travels at 0.500c. (a) According to the theory
of
(b) Which twin is older?
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Im sorry but i cant understand this
One light year =distance travelled by light in a year
1 ly=C(1 year)
d= 12ly =12c years
time taken by Fred and George with respect to observer on Earth are
t1=dv1=12 c0.9 c=13.33 yrt2 =dv2=12 c0.5 c=24 yr
Actual times are
t0=t11-v1c2=5.81 yrt0=t21-v2c2=20.78 yr
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