* Distance is the total length of the path travelled. It's always a positive value and considers all the twists and turns of the motion.

* Displacement is the straight-line distance between the starting point and the ending point. It's a vector quantity (meaning it has both magnitude and direction).

Example:

Imagine a runner on a circular track. They start at point A, run a full lap, and return to point A.

* Distance: The runner has covered the entire circumference of the track, so the distance travelled is non-zero.

* Displacement: Since the runner ends up at the same point they started, the displacement is zero.

In summary:

It's entirely possible for a particle to move and cover a distance, but end up in the same position it started. In this case, the displacement would be zero, even though the distance travelled was not.