Yes displacement be zero when an object travel in circular motion....it's initial position and its final position started from one place.....so it I'd zero..

Can the displacement be zero?

Yes, the displacement can be zero. Displacement is a vector quantity that measures the change in position of an object. It is defined as the shortest distance between the initial and final positions of an object along with its direction. Displacement can be positive, negative, or zero, depending on the motion of the object.

Explanation:
Displacement is different from distance, which is a scalar quantity and represents the total path length traveled by an object. Displacement takes into account both the magnitude and direction of the motion.

When an object returns to its initial position after undergoing any kind of motion, the displacement is zero. This means that the object has not moved from its original position and has essentially completed a round trip. For example, if a person walks 10 meters forward and then turns around and walks back 10 meters, the net displacement is zero because the person has returned to the starting point.

Key Points:
- Displacement is a vector quantity that measures the change in position of an object.
- It takes into account both the magnitude and direction of the motion.
- When an object returns to its initial position, the displacement is zero.
- This occurs when the object has completed a round trip or has moved back and forth between two points.
- Displacement can be positive, negative, or zero, depending on the motion of the object.

In conclusion, the displacement can indeed be zero if the object returns to its initial position after undergoing any kind of motion. This concept is important in understanding the difference between displacement and distance, as well as the measurement of motion in physics.