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A bicyclist makes a trip that consists of three parts, each inthe same direction (due north) along a straight road. During thefirst part, she rides for 22 minutes at an average speed of6.50 m/s. During the second part, she rides for 36 minutes atan average speed of 5.50 m/s. Finally, during the third part, she rides for 8.0 minutes at an average speed of 12.0 m/s. Howfar has the bicyclist traveled during the entire trip.

What is her average velocity for the trip?

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