Use the polygon method of vector addition to construct on the axes below a graphical solution to the problem in Figure 3-6. Use the scale 1.00 cm=10.0 N. Resultant vector length= 10.0N cm le0oem Force represented by this length= %3D (s) Direction of resultant relative to x axis = degrees

College Physics
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Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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I am not sure how to answer question #7 with the calculations that I have previously found in Questions #4 and #5. Please help me to answer question #7.

LABORATORY 3 Force Table and Vector Addition of Forces
PRE-LABORATORY ASSIGNMENT
1. Scalars are physical quantities that can be completely specified by their
magpnitude
2. A vector quantity is one that has both maemitude • and_direction
3. Classify each of the following physical quantities as vectors or scalars:
(a) Volume Acalar
(b) Force Vecton
(c) Density scalon
(d) Velocity Yctor
(e) Acceleration Vector
Answer Questions 4-7 with reference to Figure 3-6-below.
Svilslor insiluesn to noros
(3.0cm)
(4.0cm)
4. If F, stands for a force vector of magnitude 30.0 N and F2 stands for a force vector of magnitude 40.0 N
acting in the directions shown in Figure 3-6, what are the magnitude and direction of the resultant
obtainęd by the vector addition of these two vectors using the analytical method? Show your work.
「RX= Fix + Fax ニ 30.0c8(0°)+40.0c04(100)こ50,0
60
Fa FR=60.8
=50 50.0= Fex
Magnitude =00.8 N Direction(relative to x axis) =34.7 degrees
FRYCFIY +Fay=30.0sin(0°) + 40.0sin (60°) = 34.6
1 Fie)= Fr=U(50.0)+(34.6)=(60.8=0.612
aictan (34il6/50.0)
Canc tan (0.69)=34,7°
5. What is the equilibrant force that would be needed to compensate for the resultant force of the vectors-
F, and F2 that you calculated in Question 4?
Magnitude = 0.8 N Direction(relative to x axis) = d14,1 degrees
%3D
60°
75%
F 3.0 Cm
Figure 3-6 Addition of two force vectors.
37
Thomson Brooks/Cole
I 4.0Cm
Transcribed Image Text:LABORATORY 3 Force Table and Vector Addition of Forces PRE-LABORATORY ASSIGNMENT 1. Scalars are physical quantities that can be completely specified by their magpnitude 2. A vector quantity is one that has both maemitude • and_direction 3. Classify each of the following physical quantities as vectors or scalars: (a) Volume Acalar (b) Force Vecton (c) Density scalon (d) Velocity Yctor (e) Acceleration Vector Answer Questions 4-7 with reference to Figure 3-6-below. Svilslor insiluesn to noros (3.0cm) (4.0cm) 4. If F, stands for a force vector of magnitude 30.0 N and F2 stands for a force vector of magnitude 40.0 N acting in the directions shown in Figure 3-6, what are the magnitude and direction of the resultant obtainęd by the vector addition of these two vectors using the analytical method? Show your work. 「RX= Fix + Fax ニ 30.0c8(0°)+40.0c04(100)こ50,0 60 Fa FR=60.8 =50 50.0= Fex Magnitude =00.8 N Direction(relative to x axis) =34.7 degrees FRYCFIY +Fay=30.0sin(0°) + 40.0sin (60°) = 34.6 1 Fie)= Fr=U(50.0)+(34.6)=(60.8=0.612 aictan (34il6/50.0) Canc tan (0.69)=34,7° 5. What is the equilibrant force that would be needed to compensate for the resultant force of the vectors- F, and F2 that you calculated in Question 4? Magnitude = 0.8 N Direction(relative to x axis) = d14,1 degrees %3D 60° 75% F 3.0 Cm Figure 3-6 Addition of two force vectors. 37 Thomson Brooks/Cole I 4.0Cm
38
Physics Laboratory Manual Loyd
6. Figure 3-6 has been constructed to scale with 1.00 cm=10.0 N. Use the parallelogram graphical
method to construct (on Figure 3-6) the resultant vector FR for the addition of Fı and F2. Measure the
length of the resultant vector and record it below. State the force represented by this length. Measure
with a protractor the angle that the resultant makes with the x axis.
Resultant vector length=7. cm
10.0N
1.00cm
Force represented by this length=_1Q.0 N
Direction of resultant relative to x axis= ]5.0 degrees
188AYRDIARD
7. Use the polygon method of vector addition to construct on the axes below a graphical solution to the
problem in Figure 3-6. Use the scale 1.00 cm=10.0N.
Resultant vector length=,
10.0N
cm
li00em
Force represented by this length =,
hobV (b)
Direction of resultant relative to x axis=
degrees
ngem
insyn er
Show to
FR=7,0Cm
01stceneg0s ol babean sd bloovr l sooandin N
noitesu ni bainleaics oy ort
ba
Transcribed Image Text:38 Physics Laboratory Manual Loyd 6. Figure 3-6 has been constructed to scale with 1.00 cm=10.0 N. Use the parallelogram graphical method to construct (on Figure 3-6) the resultant vector FR for the addition of Fı and F2. Measure the length of the resultant vector and record it below. State the force represented by this length. Measure with a protractor the angle that the resultant makes with the x axis. Resultant vector length=7. cm 10.0N 1.00cm Force represented by this length=_1Q.0 N Direction of resultant relative to x axis= ]5.0 degrees 188AYRDIARD 7. Use the polygon method of vector addition to construct on the axes below a graphical solution to the problem in Figure 3-6. Use the scale 1.00 cm=10.0N. Resultant vector length=, 10.0N cm li00em Force represented by this length =, hobV (b) Direction of resultant relative to x axis= degrees ngem insyn er Show to FR=7,0Cm 01stceneg0s ol babean sd bloovr l sooandin N noitesu ni bainleaics oy ort ba
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