Physics, 26.07.2020 23:01 vanessa791
A train 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? 9th grade level pls
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A train travels 120 km at a speed of 60 km/h, makes a stop for 0.5 h, and then travels the next 180...
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