1
Objective
To learn how to add vectors graphically and component method and compare with
expected resultant vector.
Equipment
1. protractor
2. ruler
3. paper
4. force table
5.
set of masses
6. triplebeam balance
Theory
DEF
:
A vector
is a quantity that has both magnitude and direction.
DEF
:
A scalar
is a quantity that has magnitude but NO direction.
Ex.
Vectors
Ex.
Scalars
Force
Temperature
V
e
l
o
c
i
t
y
T
i
m
e
Displacement
Mass
Momentum
Speed
Vector Notation
A
– Boldface letters
A
G
 Arrow above letter
A – Magnitude of vector
A
A vector is defined graphically by an arrow whose length is proportional to the magnitude
of the vector quantity.
The direction of the arrow points in the direction of the vector
quantity.
Adding Vectors Graphically
Consider adding two vectors A and B graphically.
The two vectors are shown below.
q
q
A
B
A
B
R
f
1.
Select an appropriate scale. (Ex. 20 cm = 5 N)
2. Draw vector
A
to scale and in the proper direction.
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document2
3. Draw vector
B
to the same scale with its tail at the tip of
A
and in the proper
direction.
This is the end of the preview.
Sign up
to
access the rest of the document.
 Fall '09
 Luna
 Force, Mass, Ry, resultant vector

Click to edit the document details