astronaut traveling.. what effects would she feel?? 1. The problem statement, all variables and given/known data An astronaut is traveling in a rocket in outer space in a straight line at a constant speed of 0.5c. Which of the following effects would she experience? Her heart rate would change. She would feel heavier. She would find it harder to breathe. Some of her dimensions would be shorter. None of these effects would occur. 2. Relevant equations 3. The attempt at a solution i thought all of them (except the last would occur) i know that she would feel heavier and i know that it would be harder to breath. im pretty sure the heart rate would change because of the speed, and the dimensions would be shorter because she is traveling so fast right?? or would her dimensions be the same b/c her frame of reference is moving that fast too??