Vectors

Question

A) 3.5 cm North
B) 4.2 cm West

Algebraically subtract B from A(B-A)
Whaaaa? Please help

Answer 1

B from A is A-B (not B-A)

A-B=3.5N-4.2W

Answer 2

Hi Bob ... the first post is actually the question ..
subtract B from A(B-A)

Answer 3

well if you want to subtract the vector B from "A(B_A)" you have to do some defining what that second term is. To subtract B from it, it has to be a vector, so do you mean the cross product of A and (B-A)? Otherwise, it makes no sense.

Answer 4

First A(B-A) then subtract B again from that answer.

I see A as (0,3.5) and B as (-4.2,0)

I hope that's the right way algebraically.