1. The Graphical Method
Write a list of procedures for adding vectors graphically.
Check with a partner to see if your procedures are in order and that you are not missing any steps.
Objective(s)/SWBAT (Students will be able to):
Add vectors using the graphical method
Activities:
Several examples of vector addition.
Closure:
Add 2 vectors analytically
Assessment:
Problem set
Test
Keystones: 3.2.B

2. Graphical Method
Graphically determine the resultant of the following force vectors.
26 43°
31 133°
28 265°
Keystones: 3.2.B

3. Sketch Keystones: 3.2.B 31 N @ 133° 26 N @ 43° 28 N @ 265°
These are drawn tail to tail as if it is three strings tied together and people are pulling in different directions.
Keystones: 3.2.B

4. Draw tail to head Keystones: 3.2.B 31 N @ 133° 28 N @ 265° 26 N @ 43°
Translate each vector so that they are drawn tail to head.
26 43°
13 112°
Keystones: 3.2.B

5. The Graphical Method Find the net force acting on the block.
N=111 N
F=120 N
The trick is to find the angle that each vector point on the x-y plane from the geometry.
W=136 N
θ=35°
Keystones: 3.2.B

6. Graphical Method
Place the finished product in the bin when you are finished.
Keystones: 3.2.B