Question

A dog is running in the park. First, she runs 55 meters east, then 25 meters west, then 11 meters east. What is the dog's total displacement at the end?

Answer 1

Displacement is the distance between the initial and the final position.

Let the direction east as the positive direction, and west as the negative direction.

The displacement can be calculated as,

`55-25+11=41\text{ m}`

Therefore the displacement of the dog is 41 m