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A bicyclist makes a trip that consists of three parts, each in the same direction (due...

A bicyclist makes a trip that consists of three parts, each in the same direction (due north) along a straight road. During the first part, she rides for 17.9 minutes at an average speed of 7.69 m/s. During the second part, she rides for 33.2 minutes at an average speed of 4.17 m/s. Finally, during the third part, she rides for 7.77 minutes at an average speed of 13.2 m/s. (a) How far has the bicyclist traveled during the entire trip? (b) What is the average speed of the bicyclist for the trip?

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