Physics, 18.09.2019 17:10 cupkakekawaii45
Atrain travels 120 km at a speed of 60 km/h, makes a stop for 0.5 h, and then travels the next 180 km at a speed of 90 km/h. what is the average speed of the train for this trip?
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Atrain travels 120 km at a speed of 60 km/h, makes a stop for 0.5 h, and then travels the next 180 k...
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