Question

A runner starts and finishes at the same point after running one lap around a 400 m track. What is the runner's displacement?

A) 0 m
B) 200 m
C) 400 m
D) 800 m

Answer 1

The displacement of the runner after completing one lap around a 400 m track is 0 m because the starting and ending points are the same, resulting in no change in position.

Step-by-step explanation:

The displacement of an object is a vector quantity that refers to the object's overall change in position. Displacement is calculated as the shortest distance from the initial to the final position, along with the direction of that line. In the case of the runner who starts and finishes at the same point after running one lap around a 400 m track, the runner's displacement is 0 m. This is because the runner ends up at the starting point, meaning there was no change in position.