Q. 123.5( 2 Votes )

If a person lives on the average 100 years in his rest frame, how long does he live in the earth frame if he spends all his life on a spaceship going at 60% of the speed of light.

Answer :

As the Lorentz transformation suggests there will be time dilation for a moving object with respect to rest frame which is given by


Where , V is velocity of moving object and C is speed of light in vacuum i.e.


And is time in rest frame.


ATQ, 60 % of C i.e.



The person will live in the spaceship with respect to earth frame.


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