2-11.  A walker follows the path from A to E (Figure 2-22) over an 80-s time interval.

a.   What total distance does the walker cover between A and E? b.   What is the walker's total displacement between A and E? c.   What is the walker's average velocity between A and E? d.   What is the walker's average speed between A and E? e.   What is the walker's average velocity between points B and D? f.   What is the walker's average speed between B and D?

Figure 2-22  Problem 2-11

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