A Spacecraft Has a Length of 2 Meters If It

question 78

Multiple Choice

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.

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