Physics is hard but not that hard

It's time to start tasting the sweetness of physics. Let's go to letters that are not just letters, and honestly, each one is a tool from our physics toolbox, which is supposed to make the concept of a common everyday occurrence more understandable for us.  Sweeter, of course.  When we were children, in the school queue, we spread our legs shoulder-width apart and raised our hands and shouted: (This is my place).  Now imagine me with my hands above my head and my legs open shoulder-width apart. Which words do you remember?  Well done, X...at this level of physics, X is the place.  

 Children had a special place in the queue, expressed at the first point of the line, so no one would be confused. We all needed a common origin.  These Xs are also described relative to a source.  You know the coordinate system, and I don't need to explain, but an X dummy can be positive and negative relative to the origin.  For the amount of displacement, imagine two feet taking a step and a line connecting the two feet... something like a triangle.  This triangle is a symbol of something that shows us the difference between two or more things, and we call this triangle delta.  Delta X means moving from one point to another, for example, from point one to point two.  If this dummy X of ours goes to the positive side, its displacement is positive, and if it goes to the negative side, its removal is negative

Δx= x2−x1