Answer to Question #47763 in Mechanics | Relativity for jack

Question #47763
Sally travels by car from one city to another. She drives for 27.0 min at 66.0 km/h, 45.0 min at 35.0 km/h, and 54.0 min at 80.0 km/h, and she spends 7.0 min eating lunch and buying gas.
Determine the average speed for the trip.
1
Expert's answer
2014-10-14T01:26:58-0400
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