Scalar+ex
a single number with units
volume, temp, energy
vector
quantity having both a size and a direction
magnitude
the mathematical term for the length, or size of a vector
the tail of the arrow is placed at
the point where the measurement is made
Magnitude of the vector can be written as (2)
using absolute value sigs or as the letter without the arrow
Magnitude of the vector cannot be NEGATIVE!!! must be positive of zero with appropriate units
Resultant Vector
The sum of two vectors
you can add vectors
you can add vectors
in any order