Vectors
numbers that have magnitude and direction
Scalars
numbers that have magnitude only and no direction
Vector quantities include...
displacement, velocity, acceleration, and force
Scalar quantities include...
distance, speed, energy, pressure, and mass
Common notations for a vector quantity are...
either an arrow over the letter or boldface
Scalar quantities are generally represented with...
italic type
The magnitude of vectors is indicated with...
absolute value brackets
The sum or difference of two or more vectors is called the...
resultant of the vectors
V*cosΘ
x component of a vector
V*sinΘ
y component of a vector
tan-1(Y/X)
angle of vector
Dot product formula A · B
|A| |B| cosθ
A dot product generates a _____ while a cross product generates a _____
scalar, vector
Cross product formula A x B
|A| |B| sinθ
Once we have the magnitude of a dot product, we use the _____ to determine its direction
right-hand rule
Right hand rule
Unlike scalar multiplication, which is _____, vector multiplication is _____!
commutative, not commutative