Name
PHY-289
BERGEN COMMUNITY COLLEGE
CALCULUS PHYSICS I
Spring 2015
LAB 6
The Addition and Resolution of Vectors:
The Force Table
Report By:
Name
Date of Experiment:
March 4, 2015
Date Report Due:
March 11, 2015
Date Report Submitted
:
March 11, 2015
Partners:
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1
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11

Name
Objective:
To find the resultant or vector sum of two or more vectors, special methods
of vector addition are used, which may be graphical and or analytical. These two
methods will be further investigated in this lab and the graphical and analytical methods
will then be compared with the experimental data obtained from the force table. Using
the force table will help show the physical principles vector addition.
Equipment Used:
Force table with four pulleys
Four weight hangers
Set of slotted weights
(masses), Including three of
50g and three 100g
String
Protractor
Ruler
Level
3 Sheets of Cartesian Paper
Vector Addition I:
Graphical and Analytical
Method:
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11

Name
Graphical
: After plotting the two Vectors a resultant can then be drawn in to see
the resulting vectoring. Using the information given and a protractor, the direction
is found as well as the magnitude. For this graph you can see that the resultant
vector had a
length of 5cm
and a
force of 0.285g.
This was found using
Pythagorean Theorem.
Also the direction that was found
graphically was 75
°
.
Pythagorean Theorem Formula used
:
a
2
+
b
2
=
c
2
(
A
=
onesideof the triangle ,B
=
one sideof the triangle ,C
=
the hypotenuse
)
Analytical
: Breaking up the two vector forces into components then adding them
together we find that the
Resultant vector force to be 0.283g,
and using the
inverse Tangent function the
angle of the Resultant force is found to be 75
°
.
Vector Addition II:
Graphical and Analytical
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3
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11

Name
Method:
Graphical