Question

What is the angle between the vectors
A
r
and
-
A
r
when these vectors are drawn from a
common origin

Answer 1

yes ready

Answer 2

ok. so draw the x and y axises

Answer 3

now draw a vector anywhere.

Answer 4

kk

Answer 5

now if it is negative, it will be in the opposite direction, right?

Answer 6

yes

Answer 7

the angle of a straight line is 180 degrees.