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ehthaboe7265
14.12.2019 •
Physics
Aspace traveler moving at a speed of 0.70c with respect to the earth makes a trip to a distant star that is stationary relative to the earth. he measures the length of this trip to be 6.5 light-years. what would be the length of this same trip (in light-years) as measured by a traveler moving at a speed of 0.90c with respect to the earth?
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Ответ:
d2 = 3.97 light years.
Explanation:
speed of the first traveler (V1) = 0.7 c
distance if the star (d1) = 6.5 light years
speed of the second traveler (V2) = 0.9 c
applying the formula
, where 'd' is the distance between the earth and the star measured by an observer from earth,
we can get the value of 'd' and subsequently get the length for the second traveler
d =![\frac{6.5}{\sqrt{1 - (0.7)^{2} }}](/tpl/images/0418/0004/1c52e.png)
d = 9.1 light years
the distance from an observer on earth is 9.1 light years
now the length of the second traveler would be
d2 = 3.97 light years.
Ответ: