Two Spaceships, Each 100 M Long in Its Own Rest

question 40

Multiple Choice

Two spaceships, each 100 m long in its own rest frame, approach Earth from opposite directions, with equal speeds relative to Earth. As measured by a passenger in one of the spaceships, the other
Spaceship is 96 m long. What is the speed of the spaceships relative to Earth?

• A) c/4
• B) c/6
• C) c/3
• D) c/5
• E) c/7

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