You are on an interstellar mission from the Earth to the 8.7 light-years distant star Sirius. Your
spaceship can travel with 70% the speed of light and has a cylindrical shape with a diameter of
6 m at the front surface and a length of 25 m.
Time taken by spaceship to reach Sirius is 12.4 years .
Because you are moving with an enormous speed, your mission from the previous problem
will be influenced by the eects of time dilation described by special relativity: Your spaceship
launches in June 2020 and returns back to Earth directly aer arriving at Sirius.
(a) How many years will have passed from your perspective?
(b) At which Earth date (year and month) will you arrive back to Earth?
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Answer:
Explanation
A. CONVERT 8.7 LIGHT YEARS INTO MTR.
=8.7X9.15X10^15X1000 MTR.
DIVIDE DISTANCE BY VELOCITY WHICH IS 2.1X10^8 M/S(70% OF LIGHT SPEED) AND GET ANSWER.
B. AFTER GETTING TIME DOUBLE IT AND GET NO. OF YEARS BY DIVIDING THE ABOVE ANSWER BY NO. OF HOURS IN ONE YEAR.
SORRY THAT I DIDN'T GIVE YOU EXACT ANSWERS.
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