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In going from one city to another, a car whose driver tends to get lost goes...

In going from one city to another, a car whose driver tends to get lost goes 30 km north, 50 km west, and 20 km southeast. Approximately how far apart are the cities?
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Answer #1

Concept used:- take the positive x-axis along east and positive y-axis along north as shown, and then add the displacements using vector method and find the magnitude of the resultant displacement which is the distance between the cities, ol d2 3

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