Note: For Fermilab's Time
Dilation Challenge and The Relativity Game, you need
Shockwave. You may painlessly
Download
Shockwave here if you do not have it.

A space ship travels to Alpha
Centuri which is about 4
light
years away from earth.
How far does this distance appear to you if you are on a
space ship traveling at 0.99
c?

A space ship is observed to be 45
meters long while at rest on the earth. As it passes the
earth, it appears to be 8 meters long. How fast is the
ship traveling?