If you were in a spaceship traveling close to the speed of light with respect to Earth, you would notice that
A) your mass was less than normal.
B) your pulse rate was greater than normal.
C) your mass was greater than normal.
D) some of your physical dimensions were smaller than normal.
E) none of the above effects occur.

Question

Quizplus · Accepted Answer

According to the theory of relativity, you would not notice any changes in your mass, pulse rate, or dimensions from your own perspective. These effects are observed by an outside observer, not by someone traveling at that speed.

If You Were in a Spaceship Traveling Close to the Speed