Posted by **James** on Monday, May 21, 2012 at 2:26pm.

A truck travels 2.85 km north and then makes a 90° left turn and drives another 4.90 km. The whole trip takes 4.50 min.

(a) With respect to a two-dimensional coordinate system on the surface of Earth such that the y-axis points north, what is the net displacement vector of the truck for this trip?

(b) What is the magnitude of the average velocity for this trip?

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