Problem 1: An astronaut inside a spaceship, which is moving at 85% the speed of light, measures it takes him 60 sec to walk along the spaceship from one end to the other. What is the time that an observer on Earth will measure for this? Problem 2: a) If you were to board a craft and travel at 300 m/s, how long would 1 hour outside the craft would appear to be to an observer on Earth? b) If you were to board the same craft but now the craft is moving at 0.5c, how long would 1 hour be? c) Assume the craft now moves at 0.99c, how long would 1 hour be?

Problem 1: An astronaut inside a spaceship, which is moving at 85% the speed of light, measures it takes him 60 sec to walk along the spaceship from one end to the other. What is the time that an observer on Earth will measure for this? Problem 2: a) If you were to board a craft and travel at 300 rats, how long would 1 hour outside the craft would appear to be to an observer on Earth? b') If you were to board the same craft but now the craft is moving at 0.5c, how long would 1 hour be? (3) Assume the cra now moves at 0.99:3, how long would 1 hour be'?l