A car makes a trip due north for three-fourths of the time, Ask an Expert

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A car makes a trip due north for three-fourths of the time and duesouth one-fourth of the time. The average northward velocity has amagnitude of 33 m/s, and the averagesouthward velocity has a magnitude of 20 m/s. What is the average velocity (magnitudeand direction) for the entire trip?

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