Vectors Flashcards
1
Q
Collinearity statement
A
AB = kBC then AB and BC are parallel. Since B is a common point, A, B and C are collinear
2
Q
i
A
First number (x)
3
Q
j
A
Second number (y)
4
Q
k
A
Third number (z)
5
Q
Define a unit vector
A
A vector with the magnitude of 1
6
Q
Where do the lines have to point in scalar product with angles
A
Away from the angle, if not go further
7
Q
How do we know when vectors are perpendicular
A
a.b = 0
8
Q
Angle between vectors formula
A
cosx = a.b / IaI IbI
