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OpenStudy (anonymous):
A train travels from Albuquerque, New Mexico, to Mexico City in 4 hours with an average velocity of 80 km/h to the south. What is the train’s displacement?
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OpenStudy (doc.brown):
The displacement, in a straight line, from Albuquerque to Mexico City is 1890km. It doesn't matter which path you take to get there, you could travel around the world three times, that's the distance. The displacement is the difference between the final and initial positions, in a straight line.
OpenStudy (doc.brown):
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