Question

What is the amount of displacement of a runner who runs exactly 2 laps around a 400 meter track?
A) 400 meters
B)0 meters
C)800 meters

Answer 1

Displacement is the distance and direction from the start point to the end point. Our runner finished exactly where he started. His displacement is zero.

Answer 2

Answer:

Total displacement is 0.

Explanation:

The displacement of runner is equal to the shortest path covered by it. It is equal to final position minus initial position.

While distance covered by runner is equal to the total path covered by it.

Here, we have to find the displacement of a runner who runs exactly 2 laps around a 400 meter track.

In this case, the amount of displacement in 2 laps is zero because the runner is exactly at initial point after 2 laps.

Hence, the correct option is (b).