6061

Physics Relativity Level: Misc Level

If your twin is riding in a spaceship going one-fifth the speed of light (v=C/5), how much has he aged after you've aged exactly 1 year? answer in units of years.

6061

Physics Relativity Level: Misc Level

If your twin is riding in a spaceship going one-fifth the speed of light (v=C/5), how much has he aged after you've aged exactly 1 year? answer in units of years.