1-) a spaceship is moving at a speed of 0.9c relative to the earth. Spaceship B passes a in the same direction at a speed of 0.5c. What should be the speed of B relative to the world?

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1-) a spaceship is moving at a speed of 0.9c relative to the earth.
Spaceship B passes a in the same direction at a speed of 0.5c.
What should be the speed of B relative to the world?
Transcribed Image Text:1-) a spaceship is moving at a speed of 0.9c relative to the earth. Spaceship B passes a in the same direction at a speed of 0.5c. What should be the speed of B relative to the world?
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