Question #7f704
1 Answer
Oct 3, 2016
7.1 years
Explanation:
The expression for time dilation is:
Since 1 year elapses on the space ship this becomes:
This means that the crew have aged by 1 year while 7.1 years have passed on earth.
If they return to earth they will be younger than if they had not gone away. This is a relativistic effect and has been verified by measurement.