12 - vectors Flashcards
1
Q
vector
A
has direction and magnitude
2
Q
zero vector
A
no movement
written in bold
3
Q
absolute magnitude of a vector
A
if a = (x, y)
|a| = root(x^2 + y^2)
4
Q
unit vector
A
vector whose magnitude is one
if a is a vector then the unit vector of a
is a/ |a|
5
Q
position vectors
A
(x
y)
6
Q
A
