* Displacement is a vector quantity, meaning it has both magnitude (size) and direction. It represents the shortest distance between the initial and final positions of an object.
* Circular Motion: When a particle completes a full circle, it returns to its starting point. This means the final position is the same as the initial position.
* Two Revolutions: Completing two full circles means the particle starts and ends at the same point.
Therefore, since the initial and final positions are identical, the displacement is zero.
Note: While the displacement is zero, the distance traveled is not. The distance traveled in two complete revolutions would be twice the circumference of the circle.
