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Physics, 18.07.2019 06:00 mooreadrian41235

Atrain travels 69 kilometers in 3 hours, and then 51 kilometers in 2 hours. what is its average speed? your question 14 options: answer units

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Atrain travels 69 kilometers in 3 hours, and then 51 kilometers in 2 hours. what is its average spee...
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