Consider a planet at rest and a spaceship that whizzes past the planet at high speed.An observer on the planet sees a contracted spaceship,while an observer on the spaceship sees
A)a contracted planet.
B)an expanded planet.
C)a normal planet.
D)could be contracted or expanded depending on the direction of travel

Question

Quizplus · Accepted Answer

According to the theory of relativity, length contraction is a mutual effect. An observer on the spaceship will see the planet as contracted in the direction of motion, just as the observer on the planet sees the spaceship contracted.

Consider a Planet at Rest and a Spaceship That Whizzes