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Joe2019:
Eric walks 7 km East in 2 hours and then 2.5 km West in 1 hour. (3.2, 3, 3.4) km/hr is the average speed and (1.3, 1.5, 1.6) km/hr is the average velocity for the whole journey that Eric takes.
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Joe2019:
you have to pick a number in the ()
Joe2019:
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