Explanation:



When a body moves from one position to another over a period of time, it is said to be in motion. The change in position of the body with respect to time is what is called motion. It is possible to describe the motion of an object by looking at its displacement, distance, speed, and velocity. However, motion itself is the overall concept that encompasses all of these factors.



Displacement: Displacement refers to the change in position of an object in a particular direction. It is the shortest distance between the initial and final positions of an object. Displacement can be positive, negative, or zero depending on the direction of motion. For example, if a car moves from point A to point B, its displacement is the direct distance between A and B.



Distance: Distance refers to the total length traveled by an object in any direction. Distance is always positive and is the actual path taken by the object. For example, if a car moves from point A to point B and then back to A, its distance is the total length of the path taken by the car.



Speed: Speed refers to the rate at which an object changes its position. It is the distance covered by the object per unit time. Speed is always positive and is measured in units of distance per unit time. For example, if a car covers a distance of 100 km in 2 hours, its speed is 50 km/hr.



Conclusion: Thus, motion is the change in position of a body over time, and it is described using displacement, distance, speed, and velocity. However, motion itself is the overall concept that encompasses all of these factors.

Then how should we define Displacement, if not as change in position of a body with time????

Motion is just change in position