In a classroom, a student gets up from his desk and walks 5 metres ahead to his friend’s desk, collects a book and walks 5 metres back to his own desk. The total displacement of the student will be

I know its answer is 0 displacement but why

This is what i found “in a gas turbine engine, the combustor or combustion chamber is fed high pressure air by the compression system. early gas turbine engines used a single chamber known as a can type combustor. today three main configurations exist: can, annular and cannular (also referred to as can-annular tubo-annular).” i hope this you for what your looking for. can you plz mark me brainliest?

The answer is as follows in the photo