Open this video of a boy sliding across ice. The screen shows a data table, a position against time graph, and a velocity against time graph

Ok we will i'm sure 456

An informal structure in a bureaucracy would be something like so-called "office politics". where there's a formal structure set up for the organization, but then an informal subculture as well that has a way of organizing the bureaucracy further. this can be positive because it sets up an added degree of organization, albeit informal, within the bureaucracy.