Question

Explain the relative displacement and its any two cases.

Answer 1

Hint: Displacement is defined to be change in proportion of an object.
Displacement is a vector quantity. This means it has a direction as well as magnitude and it is usually represented by an arrow that points from initial point and final point.

Complete step by step answer:
Relative displacement means change in position sector or we can only say displacement of any object with respect to another object.
For example1:

So we can clearly see no distance between
 $A$ and $B$=$d + 2$
Initial=$d$
So, relative displacement=${x_{BA = }}2m$.

Note:
Relative displacement is calculated in exactly the same way if you know the components of the position sector of A and $B$. Position sectors are displacement relative to the origin. Distance is the magnitude or size of displacement between two positions. Relative displacement, which is displacement of a point on a structure with respect to its original location or an adjacent point on the structure that has also undergone movement, can be an effective indicator of postevent structural damage. In simple words relative velocity is defined as velocity of an object B in the rest frame of another object A. Here A and B are two different objects. The word displacement implies the object has moved, or has been displaced. The SI unit of displacement meter. Distance is the length of path taken by the object whereas displacement is simply the distance between where the object started and where it ended up.