Answer :
Using the time dilation formula we find that the required speed is 0.79 0.79 0.79 c. It move very fast.
What is time dilation in simple words?
Definition of time dilation
A slowing of time in accordance with the theory of relativity that occurs in a system in motion relative to an outside observer and that becomes apparent especially as the speed of the system approaches that of light. — called also time dilatation.
Is time dilation a real thing?
The idea of "absolute time" was our default for millennia. But time is relative, as gravity and motion both cause time to dilate. Both space and time coordinates are needed to describe an object in our Universe.
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