Question

explain whether the walls of a classroom are at rest or in motion

Answer 1

the walls are always in rest.it is already fixed with hard materials so that it can not be broken down. we can say that a body is in motion if it is non motile with respect to its own environment.
as the walls do look like a statue and are non motile ,we can call it as the walls are at rest always until its broken down.


hope it helps!!!