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scurry18

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## Homework Statement

Identical twins Speedo and Goslo join amigration from the Earth to Planet X. It is 20.0 light years away in a reference frame in which both planets are at rest. The twins, of the same age, depart at the same time on different spacecrafts. Speedo's craft travels steadily at .950c, and Goslo's travvels at .750c. Calculate the age difference between the twein after Goslo's spacecraft lands on Planet X. Which twin is older?

## Homework Equations

(1-v^2/c^2)^1/2 x time of travel

## The Attempt at a Solution

Speedo travels for 21 years.