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Question

Imagine we measure the length of a spaceship to be 30 meters when it is at rest

relative to us. What will happen to the length if we somehow measure it as it moves

past us? If the speed is 60% of the speed of light (180,000 km/s) what length would we

measure? (Hint: you can use the graph shown from about minute 39-41 in the lecture 4A)