A spacecraft has a length of 2 meters if it is measured at rest. The spacecraft moves past an observer at half the speed of light. What will the observer measure the spacecraft's length to be?
A) less than 10 meters
B) more than 10 meters
C) exactly 10 meters
D) The answer will depend on whether the observer measures the length while it is moving toward or away from them.

Question

Quizplus · Accepted Answer

The Answer of A spacecraft has a length of 2 meters if it is measured at rest. The spacecraft moves past an observer at half the speed of light. What will the observer measure the spacecraft's length to be?
A) less than 10 meters
B) more than 10 meters
C) exactly 10 meters
D) The answer will depend on whether the observer measures the length while it is moving toward or away from them.

A Spacecraft Has a Length of 2 Meters If It