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Question

A walker follows the path from A to E as shown in the figure below, over a time interval of 80 sec.
What is the walker's total displacement between A and E?
  1. 20 m
  2. 160 m
  3. 80 m
  4. 40 m


Solution

The correct option is C 80 m
Displacement is a vector quantity whose length is the shortest distance from the initial to the final position.
In the above case, distance covered will be the total distance walked i.e., (60 + 40 + 60 = 160 m) but the total displacement will be only 80 m.

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