Vectors Flashcards
1
Q
posistion vectors
->
AB
A
= b-a
2
Q
vecor a and b are parrel if
A
vecotr a = £b where
£=lambda, and £ is a constant
3
Q
if vecotor a = xi + yj +zk then magnitude is
A
|a|= root(x^2 + y^2 + z^2)
4
Q
unit vecotr (a with ^ on top) =
A
(1/|a| ) x a
5
Q
angle with axes: cos@x =
A
x/|a|
6
Q
angle with axes: cos@y=
A
y/|a|
7
Q
angle with axes: cos@z
A
z/|a|
