IPA: /ˈvɛktəˌriəli/
KK: /ˈvɛktəˌriəli/
In a way that relates to a vector, which is a quantity that has both direction and magnitude.
The forces acting on the object can be analyzed vectorially to understand their effects better.
Vectorially → It is formed from "vector" (from Latin "vector", meaning carrier or one that carries) and the suffix "-ially" (meaning in a manner relating to). The word "vectorially" refers to something done in a manner that relates to a vector, or a quantity that has both magnitude and direction.
Think of a 'carrier' ('vector') doing something 'in a manner' ('-ially') that relates to direction and magnitude — that's what vectorially means.