Physics, 18.11.2020 22:40 kk042563

A train traveled from city a to city b. For the first 14 hours, it traveled at an average speed of 120 km/h. For the next 10 hours, it traveled at a average speed of 90 km/h. what was the average speed of the whole journey?

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A train traveled from city a to city b. For the first 14 hours, it traveled at an average speed of 1...

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