Physics, 13.07.2021 06:00 davi113001
a car travel the first 20km with a speed of 40km/h and the next 40km with a speed of 80km/h . find the average speed
Answers: 1
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a car travel the first 20km with a speed of 40km/h and the next 40km with a speed of 80km/h . find t...
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