---You probably know that subtraction is the same thing as adding anegative: 8 – 5 is the same thing as 8 + (–5). The easiest way to thinkabout vector subtraction is in terms of adding a negative vector.What’s a negative vector? It’s the same vector as its positivecounterpart, only pointing in the opposite direction.
A –
B, then, is the same thing as
A + (–
B). For instance, let’s take the two vectors
A and
B:
To subtract
B from
A, take a vector of the same magnitude as
B, but pointing in the opposite direction, and add that vector to
A, using either the tip-to-tail method or the parallelogram method.
