1. Vectors - Introduction Contents:
What they are
Handy Truths
Types of vectors

2. Vectors - What they are
Magnitude and Direction:
8 cm x
14 cm 320o

3. Vectors - Handy Truth #1 To reverse a vector, multiply by -1 +8 cm x

4. Vectors - Handy Truth #2
To add parallel ( ) or anti-parallel ( ) vectors
simply add their magnitudes
A = 8 cm x, B = -3 cm x
A+B = 5 cm x

5. Vectors - Handy Truth #3
To add non-parallel vectors, place them tip to tail:
Addition: A A B B
A+B
Did the order matter?
Subtraction:
A+ (-B) -B A A -B

6. Vectors - Types of vectors
What was your shorter set of directions?
Angle-Magnitude Vector Component A
36.87o A
4 cm x
3 cm y
A = 4 cm x + 3 cm y ^
5 cm 36.87o above level