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A traveler visits a location (or doesn't!) ##x## light years away at

That really is all there is to be said.

If the poster mentions time dilation, the question

If the poster mentions acceleration, the question

Thoughts?

*fractional*[EDITED] speed ##v## and instantly returns at the same speed. After this her clock has progressed by ## \frac {2 x} {v} \sqrt {1 - v^2}## years. [EDITED]That really is all there is to be said.

If the poster mentions time dilation, the question

*is*a B.If the poster mentions acceleration, the question

*is*a B.Thoughts?

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