To outside observers,the overall sizes of objects traveling at relativistic speeds are
A)larger.
B)smaller.
C)the same size.

Question

Quizplus · Accepted Answer

According to the theory of relativity, as objects travel at relativistic speeds, their length in the direction of motion appears shorter than their rest length to an observer at rest. This phenomenon is known as length contraction. Therefore, the overall size of objects traveling at relativistic speeds is smaller when observed from an external reference frame.

To Outside Observers,the Overall Sizes of Objects Traveling at Relativistic