Two spaceships traveling in opposite directions along parallel lines measure their own and the other spaceship's length while passing one another. The crew on spaceship A says that their ship is 1 000 m long and that ship B is 800 m long. The crew on ship B says that their ship is 1 000 m long and that ship A is 800 m long. At what speed does each crew say that the other ship is traveling
relative to their own ship?
a. 0.36 c
b. 0.60 c
c. 0.64 c
d. 0.80 c
e. 1.25 c
B
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