Velocity Addition: 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/7
B. c/6
C. c/5
D. c/4
E. c/3


Answer: A

Physics & Space Science

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