Final answer:
In physics, the scenario of one person getting out between displacements A and B would be shown by vector addition, with R representing the total displacement. The positions A and B reflect sequential movements, and a point can be diagrammatically placed between vectors A and B to indicate the occurrence of an event.
Step-by-step explanation:
When referring to the scenario where exactly one person gets out between A and B, it's assumed that A and B are two points or positions along a path or a vector diagram. In physics, particularly in the study of kinematics, displacements are represented by vectors, and the total displacement of a journey would be the vector sum of the individual displacements. The vectors A and B represent sequential movements, and to illustrate the path where one event happens between A and B, one might diagrammatically place a point between vector A and vector B to signify where the event (in this case, a person disembarking) takes place.
Using vector addition, if A and B are two legs of a walk, R, the resultant vector, represents the total displacement. By adding the negative of B to A as in vector subtraction, one can find the new position after one leg of the journey. Likewise, the journey's path can be considered using the x and y components of the resultant vector to show alternative routes between the same initial and final positions. This demonstrates multiple possible paths while still ending up at the same endpoint, the tip of R.