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Answer to Question #45619 in Mechanics | Relativity for mo

Question #45619
Sally travels by car from one city to another. She drives for 21.0 min at 76.0 km/h, 53.0 min at 40.0 km/h, and 49.0 min at 49.0 km/h, and she spends 6.0 min eating lunch and buying gas. Determine the average speed for the trip.
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