Mini Lab #6
.pdf
keyboard_arrow_up
School
Texas A&M University *
*We aren’t endorsed by this school
Course
201
Subject
Physics
Date
Dec 6, 2023
Type
Pages
5
Uploaded by PresidentKnowledge16163
Laboratory Report:
Lab Date: October 17, 2023
Experiment’s Title:
Friction Forces
Course/Section #:
PHYS 201-400
Station #:
1
Names of students (who performed the experiment):
Natalie Hesterman & Holly Pawlowski & Alejandro Mapula
Names of missing students:
N/A
TA’s Name:
Mahmodul Maheen
Lab Partners:
Natalie Hesterman & Holly Pawlowski &
Alejandro Mapula
Introduction:
In this lab, we familiarized ourselves with friction forces. Friction forces are contact
forces that arise due to imperfections of the surfaces in contact. There are three types of frictional
forces. These are static, kinetic, and rolling friction. A static friction force is present when the
object does not slide with respect to its surface. The kinetic friction force is used when the object
is sliding. Lastly, rolling friction is present when the object has wheels. For this lab, we observed
some of the properties of these frictional forces. To conduct this experiment, we placed a cart of
mass (m) on a dynamic track and connected a string to a mass (m) hanging over a pulley when
the hanging mass was released and started to fall the cart slid across the track on the table. When
this happens, the 4 forces acting on this are the force of gravity pulling the hanging mass, the
weight of the cart, the normal force applied on the cart, and the frictional force acting on the cart.
There were several equations that we had to learn.
These include:
The variables in these equations are:
1.
F=(M+m)a
a=acceleration
f
= friction force
2.
F=m*g+
f
F=force
N
= normal force
3.
f
=μ*
N
m=mass
μ= coefficient of friction
4.
N=M*g
M= magnification
5.
μ=(m*g-(M+m)a)/(M*g)
g=gravity (9.81 m/s^2)
Furthermore, in this lab, we studied the coefficient of friction between the cart and the track and
its dependency on normal force. We used a dynamic track, cart, friction pad, photogate/pulley
system, hanger/string, and a mass set to perform this experiment.
Results:
Activity #1:
In Activity 1 of this experiment we did 3 cases including 5 trials each. We collected the
force, measured acceleration, force/acceleration, friction coefficient, average, and the STD
values which allowed us to make these tables below. Furthermore, for activity 1 we took friction
into consideration by estimating the force that drives the motion of the cart.
Table 1. Case #1(155g)
Item:
Trial #1:
Trial #2:
Trial #3:
Trial #4:
Trial #5:
Average:
STD:
Force (stat):
0.9049
0.8704
0.8869
0.9683
0.7529
0.87668
0.07851109476
Measured
Acceleration (stat):
1.605
1.74
1.585
1.56
1.597
1.6174
0.07061373804
Force/Acceleration:
0.563
0.5002298
851
0.5595583
596
0.6207051
282
0.4714464
621
0.5420304192
1.111838814
μ (friction coefficent):
0.01
Table 2. Case #2(255g)
Item:
Trial #1:
Trial #2:
Trial #3:
Trial #4:
Trial #5:
Average:
STD:
Force (stat):
1.702
1.987
1.913
1.78
1.904
1.8572
0.1142352835
Measured
Acceleration (stat):
2.293
2.419
2.065
2.43
2.189
2.2792
0.1553164512
Force/Acceleration:
1.3472385
43
1.2174131
86
1.0794563
51
1.3651685
39
1.1496848
74
1.231792299
0.1237655908
μ (friction coefficent):
0.03
Table 3. Case #3(255g +100g on cart)
Item:
Trial #1:
Trial #2:
Trial #3:
Trial #4:
Trial #5:
Average:
STD:
Force (stat):
1.96
1.914
2.09
1.975
1.901
1.968
0.07483648843
Measured
Acceleration (stat):
2.158
2.182
2.178
2.167
2.172
2.1714
0.009423375192
Force/Acceleration:
0.9082483
781
0.8771769
019
0.9595959
596
0.9113982
464
0.8752302
026
0.906329937
7
0.03421889199
μ (friction coefficent):
0.01
Activity #2:
For Activity 2, we did another 3 cases that each had 5 trials. These all collected the same
data as above, however, the experiment run was different. The aim of Activity 2 was to redo
Activity 1 but to add on the friction pad to the cart, which would apply the maximum friction
between the cart and the dynamic track.
Table 4. Case #4(155g)
Item:
Trial #1:
Trial #2:
Trial #3:
Trial #4:
Trial #5:
Average:
STD:
Force (stat):
1.382
1.485
1.372
1.405
1.412
1.4058
0.04437003493
Measured
Acceleration (stat):
0.9097
0.9166
0.9046
1.164
0.8934
0.95766
0.1156578921
Force/Acceleration:
1.5191821
48
1.6201178
27
1.5166924
61
1.2070446
74
1.5804790
69
1.488703236
0.1633527661
μ (friction coefficent):
0.09
Your preview ends here
Eager to read complete document? Join bartleby learn and gain access to the full version
- Access to all documents
- Unlimited textbook solutions
- 24/7 expert homework help
Related Questions
QUESTION 1
Problem
A new type of force was discovered by physicists with the following expression:
Fnew=+Be*+3x
%D
where alpha
beta are constants, and x is the position. The expression above was obtained from the interaction of a massless Higgs Boson (a type of particle) anda black hole.
Quantum physicists then decides to design and build a machine that is able to move the Higgs Boson from x2 to x1. How much work should the machine do to achieve this feat? (For simplicity,
consider that no energy is lost in the process)
Solution
To determine the work done we apply the following
W =
dx
Evaluating the above, we get
W =
for the limits from xị to xf
substituting x1 and x2 as the limits, the work done is expressed as
W =
| + B
X1
( x15 - x2)
arrow_forward
Please find the answers needed for each box.
arrow_forward
just fill up the missing parts or the blanks
arrow_forward
PHY107 Fina
Theme
Question 6 of 16
The error in the instruments is could "Systymatic Erroe".
True
O False
arrow_forward
5. What is the theoretical value for how long it would take a metal ball to fall 1.5 meters in the Free Fall Apparatus
Experiment?
(you must show the correct equation in symbolic form, and your work to receive full credit)
arrow_forward
energy interaction diagram , and claim evidence reasoning?
arrow_forward
please submit the linear graph and the associated
data table and the answer to question for
particular grapgh.
Some of your variables are: F-applied force, f-frictional force, 46-displacement, a linear
acceleration, t time, v velocity, ve initial velocity, o final angular velocity, oginitial angular
velocity, a angular acceleration, rradius, 2-wavelength, f-frequency, and U-potential energy.
6.
o+2as6
Angular Displacement (rad)
0.35
0.91
Final Angular Velocity (rad/s)
3.98
5.30
7.51
1.48
8.86
2.10
2.78
4.93
10.89
12.96
Plot a graph for this data and find the acceleration and initial velocity.
let y=
let x-
Eq'n in y mx+b form:
Slope from equation
Slope from graph
Intercept from cquation
Intercept from graph-
Coefficient of determination-
Ang. Acceleration=
Initial Ang. velocity-,
arrow_forward
Help me solve this problem, the problems given answers are a X equals 13.27 pounds Z equals 20.31 pounds BX equals -3.91 pounds
BY equals 18.75 pounds BZ equals -1.56 pounds and FCD equal 60.03 pounds Show all work draw free body diagrams show FCD
acting from D to C
arrow_forward
unacademy.com/educator/doubts/solve?topic%3DVKKVN
need help with this question
A neutron beam of initial kinetic energy Eo is divided into two beams at point O by some
mechanism. Thereafter the beams proceed on the path OAC and OBC without a phase change
at the corners A and B to interfere with each other at point C. Here OACB is a square of side I,
tilted at an angle 0 above the horizontal. Mass of the neutron is m, Planck's constant is h and
acceleration of free fall is g. the possible expression(s) for angle 0 at which a Maxima is
detected at C is/are
Horizontal
A
2hl /2mE, -h²
2m gl
2mE
2hl
m°gl
2h?
(A) sin
(B) sin-
6hl /2mE,
2m2gl
2hl /2mE, -h?
2m°gl
- 9h?
(C) sin
(D) tan
+ Acva
Go to S
29°C Partly cloudy
Type here to search
&
2$
7
6O
2
3
T
Y
Q
G
H.
K
A
S
F
M
I
C
טא
D.
arrow_forward
I don't know how to do this
I need help with A,B,C and D. My professor won't help me so I don't know what to do. Is there any chance that you can label which problem is which like A,B,C, and D.
Thank you
arrow_forward
QUESTION 4
Problem
A new type of force was discovered by physicists with the following expression:
a
Fnew
+ Be* + 3x
where alpha & beta are constants, and x is the position. The expression above was obtained from the interaction of a massless Higgs Boson (a type of particle) and
a black hole.
Quantum physicists then decides to design and build a machine that is able to move the Higgs Boson from x2 to x1. How much work should the machine do to
achieve this feat? (For simplicity, consider that no energy is lost in the process)
Solution
To determine the work done we apply the following
W =
dx
Evaluating the above, we get
W =
for the limits from xj to xe
substituting x1 and x2 as the limits, the work done is expressed as
W =
Bi
x1
( x15
arrow_forward
QUESTION 4
A doube-constrained gravity model is proposed to generate a 3x3 trip distribution matrix. The expected total trip productions are 0₁ = 250, O₂ = 415, and O3 = 395, and
1
the expected trip attractions are D₁-340, D2-285, and D3= 435. A cost function is specified as f (c.) = , where cij is the average travel time frrom zone i to zone j
2'
(in hours). The average travel time within the same zone is 30min for all three zones and the average travel time between different zones is 1h for all pairs of different
zones.
Using the Furness algorithm with a convergence criterion of €=0.001, determine the final expected number of trips from origin zone 3 to destination zone 1. Round the
number of trips to the nearest whole number.
O a. 98 trips
O b. 68 trips
O C. 74 trips
d. 47 trips
O e. 26 trips
arrow_forward
4
Material point with mass m = 1 moves in the field of central forces which come from the potential
energy V(r) = k/(31²³) where k > 0.
a) Find the value of the energy of the circular orbit of radius a.
b) Is this circular orbit stable or unstable?
"
arrow_forward
Part B
hp
How much energy is released by the explosive separation of the two stages?
Express your answer with the appropriate units.
E =
Submit
U
Value
Provide Feedback
μA
P Pearson
Request Answer
Units
c. All rights reserved. | Terms of Use | Privacy Policy | Permissions Contact Us |
W
?
ان و
ENG
Dė
Review
Next >
5:
2/15
arrow_forward
anwer according to the blanks:
A new type of force was discovered by physicists with the following expression:
where alpha & beta are constants, and x is the position. The expression above was obtained from the interaction of a massless Higgs Boson (a type of particle) and a black hole.
Quantum physicists then decides to design and build a machine that is able to move the Higgs Boson from x2 to x1. How much work should the machine do to achieve this feat? (For simplicity, consider that no energy is lost in the process)
Solution
To determine the work done we apply the following
W = Blank 1dx
Evaluating the above, we get
W = Blank 2| Blank 3 | + Blank 4eBlank 5 + Blank 6xBlank 7 for the limits from xi to xf
substituting x1 and x2 as the limits, the work done is expressed as
W = Blank 8| Blank 9/Blank 10 | + ( Blank 11x1 - Blank 12 ) + Blank 13( x15 - x25 )
arrow_forward
Quantitative Analysis -
Introducing Elasti
For each of the following situations:
a. Choose an initial and final state (states A and B) that will be appropriate (interesting) for
analysis.
b. If there is not already a physical diagram of the situation and there should be one for proper
analysis, include one.
c. Construct a system schema of the situation. Do not forget to include the system boundary for
the system specified by the problem. Choose your system wisely.
d. Construct an energy bar chart and system flow diagram (LOL plots) for each problem.
e. You are allowed to add other energy storage modes. You do not have to use the energy
storage modes that are printed in each LOL plot.
f. Find the unknown value.
1. A toy car is pressed onto a small spring so that it compresses it 5 cm and is then released.
The spring's stiffness constant is 400 N/m and the cart's mass is 250 g. How fast is the cart
moving when it leaves the spring?
arrow_forward
Please derived a formula for that tangent alpha based on the figure. Thank you!
arrow_forward
7
arrow_forward
I need help with this problem using one of the three equations. Please and thank you in advance.
arrow_forward
C Current Students..
S Home | Schoology
Course: Student R..
etflix M maaoun4@hawkm.
Aoun - Circuits Lab Simulation - 10382745 ☆
Last edit was made 11 minutes ago by Zainab Chebib
dit View Insert Format Tools Add-ons Help
E = = E
E - E - E
12
I U
Normal text
Comic San.
100%
* 1 . . 2 I 3 4 . 5 I 6 . 7
Section E: Concept Check
22.Why does brightness decrease when more light bulbs are added in series?
23. Based on your observations and data, what is a disadvantage of a series circuit?
24. Answer the following using the VIR table for the series circuit using question #15.
is divided proportionally among each light bulb.
is the same everywhere.
a. In a series circuit
b. In a series circuit
c. In a series circuit total resistance is
resistance.
than any one source of
Warning:If any 2 copies are the same, both students will receive a zero and it will be reported to
تحذير: اي نسختين متطابقتين ، سيحصل كلا الطالبين على صفر وسيتم إبلاغ الإدارات بذلك .administration
MacBook Pro
* ES
F8
%23
3
4
5…
arrow_forward
SEE MORE QUESTIONS
Recommended textbooks for you
Astronomy
Physics
ISBN:9781938168284
Author:Andrew Fraknoi; David Morrison; Sidney C. Wolff
Publisher:OpenStax
Modern Physics
Physics
ISBN:9781111794378
Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:OpenStax College
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
Classical Dynamics of Particles and Systems
Physics
ISBN:9780534408961
Author:Stephen T. Thornton, Jerry B. Marion
Publisher:Cengage Learning
Related Questions
- QUESTION 1 Problem A new type of force was discovered by physicists with the following expression: Fnew=+Be*+3x %D where alpha beta are constants, and x is the position. The expression above was obtained from the interaction of a massless Higgs Boson (a type of particle) anda black hole. Quantum physicists then decides to design and build a machine that is able to move the Higgs Boson from x2 to x1. How much work should the machine do to achieve this feat? (For simplicity, consider that no energy is lost in the process) Solution To determine the work done we apply the following W = dx Evaluating the above, we get W = for the limits from xị to xf substituting x1 and x2 as the limits, the work done is expressed as W = | + B X1 ( x15 - x2)arrow_forwardPlease find the answers needed for each box.arrow_forwardjust fill up the missing parts or the blanksarrow_forward
- PHY107 Fina Theme Question 6 of 16 The error in the instruments is could "Systymatic Erroe". True O Falsearrow_forward5. What is the theoretical value for how long it would take a metal ball to fall 1.5 meters in the Free Fall Apparatus Experiment? (you must show the correct equation in symbolic form, and your work to receive full credit)arrow_forwardenergy interaction diagram , and claim evidence reasoning?arrow_forward
- please submit the linear graph and the associated data table and the answer to question for particular grapgh. Some of your variables are: F-applied force, f-frictional force, 46-displacement, a linear acceleration, t time, v velocity, ve initial velocity, o final angular velocity, oginitial angular velocity, a angular acceleration, rradius, 2-wavelength, f-frequency, and U-potential energy. 6. o+2as6 Angular Displacement (rad) 0.35 0.91 Final Angular Velocity (rad/s) 3.98 5.30 7.51 1.48 8.86 2.10 2.78 4.93 10.89 12.96 Plot a graph for this data and find the acceleration and initial velocity. let y= let x- Eq'n in y mx+b form: Slope from equation Slope from graph Intercept from cquation Intercept from graph- Coefficient of determination- Ang. Acceleration= Initial Ang. velocity-,arrow_forwardHelp me solve this problem, the problems given answers are a X equals 13.27 pounds Z equals 20.31 pounds BX equals -3.91 pounds BY equals 18.75 pounds BZ equals -1.56 pounds and FCD equal 60.03 pounds Show all work draw free body diagrams show FCD acting from D to Carrow_forwardunacademy.com/educator/doubts/solve?topic%3DVKKVN need help with this question A neutron beam of initial kinetic energy Eo is divided into two beams at point O by some mechanism. Thereafter the beams proceed on the path OAC and OBC without a phase change at the corners A and B to interfere with each other at point C. Here OACB is a square of side I, tilted at an angle 0 above the horizontal. Mass of the neutron is m, Planck's constant is h and acceleration of free fall is g. the possible expression(s) for angle 0 at which a Maxima is detected at C is/are Horizontal A 2hl /2mE, -h² 2m gl 2mE 2hl m°gl 2h? (A) sin (B) sin- 6hl /2mE, 2m2gl 2hl /2mE, -h? 2m°gl - 9h? (C) sin (D) tan + Acva Go to S 29°C Partly cloudy Type here to search & 2$ 7 6O 2 3 T Y Q G H. K A S F M I C טא D.arrow_forward
- I don't know how to do this I need help with A,B,C and D. My professor won't help me so I don't know what to do. Is there any chance that you can label which problem is which like A,B,C, and D. Thank youarrow_forwardQUESTION 4 Problem A new type of force was discovered by physicists with the following expression: a Fnew + Be* + 3x where alpha & beta are constants, and x is the position. The expression above was obtained from the interaction of a massless Higgs Boson (a type of particle) and a black hole. Quantum physicists then decides to design and build a machine that is able to move the Higgs Boson from x2 to x1. How much work should the machine do to achieve this feat? (For simplicity, consider that no energy is lost in the process) Solution To determine the work done we apply the following W = dx Evaluating the above, we get W = for the limits from xj to xe substituting x1 and x2 as the limits, the work done is expressed as W = Bi x1 ( x15arrow_forwardQUESTION 4 A doube-constrained gravity model is proposed to generate a 3x3 trip distribution matrix. The expected total trip productions are 0₁ = 250, O₂ = 415, and O3 = 395, and 1 the expected trip attractions are D₁-340, D2-285, and D3= 435. A cost function is specified as f (c.) = , where cij is the average travel time frrom zone i to zone j 2' (in hours). The average travel time within the same zone is 30min for all three zones and the average travel time between different zones is 1h for all pairs of different zones. Using the Furness algorithm with a convergence criterion of €=0.001, determine the final expected number of trips from origin zone 3 to destination zone 1. Round the number of trips to the nearest whole number. O a. 98 trips O b. 68 trips O C. 74 trips d. 47 trips O e. 26 tripsarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- AstronomyPhysicsISBN:9781938168284Author:Andrew Fraknoi; David Morrison; Sidney C. WolffPublisher:OpenStaxModern PhysicsPhysicsISBN:9781111794378Author:Raymond A. Serway, Clement J. Moses, Curt A. MoyerPublisher:Cengage LearningCollege PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax College
- Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage LearningClassical Dynamics of Particles and SystemsPhysicsISBN:9780534408961Author:Stephen T. Thornton, Jerry B. MarionPublisher:Cengage Learning
Astronomy
Physics
ISBN:9781938168284
Author:Andrew Fraknoi; David Morrison; Sidney C. Wolff
Publisher:OpenStax
Modern Physics
Physics
ISBN:9781111794378
Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:OpenStax College
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
Classical Dynamics of Particles and Systems
Physics
ISBN:9780534408961
Author:Stephen T. Thornton, Jerry B. Marion
Publisher:Cengage Learning