Homework Help is Here – Start Your Trial Now!
Science
Physics
3. Choose two different shoes (sneaker and dress shoe, work boot and slipper, etc.). These can be your own or someone else's (those of spouse, child, friend, etc.) They do not have to be new- use whatever you have, in any condition. 4. Place one shoe at one end of a ramp of any material that will not bend or deform under the shoe's weight. (Use wood, metal, plastic, or even heavy-duty cardboard for the ramp.) Make sure the sole of the shoe and the ramp are relatively clean of debris. a. Slowly raise the "shoe end" of the ramp until the shoe begins to slide. Measure and record the angle of the ramp just as sliding begins. You can measure the angle with a protractor or using a height measurement and a trig function. NOTE: The shoe doesn't have to slide all the way down the ramp; actually, you want to capture the angle at which shoe begins to move. b. Do this six times. Note that your angles should be fairly consistent. If any angle seems inconsistent with the other angles, discard it and try again. In the end, you should have six consistent (but not necessarily equal) angles. 5. Repeat the process with the second shoe. Analysis 1. Using the six measured angles for each shoe, find the average angle at which each shoe begins to slide. 2. Using the equation we derive in class, calculate us for each shoe using the average angle for each shoe. Only one calculation is needed for each shoe. 3. Is average us the same for each shoe? How closely does average #s match accepted values? Some accepted values or ranges can be found at https://www.engineeringtoolbox.com/friction- coefficients-d 778.html. If you can't find the coefficient for your combination of materials, google the materials (for example, "coefficient of static friction between leather and cardboard" and see what you can find.) Alternatively, consider some close to your surface materials and note this in your presentation.

3. Choose two different shoes (sneaker and dress shoe, work boot and slipper, etc.). These can be your own or someone else's (those of spouse, child, friend, etc.) They do not have to be new- use whatever you have, in any condition. 4. Place one shoe at one end of a ramp of any material that will not bend or deform under the shoe's weight. (Use wood, metal, plastic, or even heavy-duty cardboard for the ramp.) Make sure the sole of the shoe and the ramp are relatively clean of debris. a. Slowly raise the "shoe end" of the ramp until the shoe begins to slide. Measure and record the angle of the ramp just as sliding begins. You can measure the angle with a protractor or using a height measurement and a trig function. NOTE: The shoe doesn't have to slide all the way down the ramp; actually, you want to capture the angle at which shoe begins to move. b. Do this six times. Note that your angles should be fairly consistent. If any angle seems inconsistent with the other angles, discard it and try again. In the end, you should have six consistent (but not necessarily equal) angles. 5. Repeat the process with the second shoe. Analysis 1. Using the six measured angles for each shoe, find the average angle at which each shoe begins to slide. 2. Using the equation we derive in class, calculate us for each shoe using the average angle for each shoe. Only one calculation is needed for each shoe. 3. Is average us the same for each shoe? How closely does average #s match accepted values? Some accepted values or ranges can be found at https://www.engineeringtoolbox.com/friction- coefficients-d 778.html. If you can't find the coefficient for your combination of materials, google the materials (for example, "coefficient of static friction between leather and cardboard" and see what you can find.) Alternatively, consider some close to your surface materials and note this in your presentation.

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
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)...
See similar textbooks
icon
Related questions
Topic Video
Question

Shoe 1# Average angle: 15.17

Shoe #2 Average angle: 19.33

C Shoe #1 15 16 15 14 16. 15° 7 Average 15.17 Shie #2 EF = 22 20 17 16° What is the coefficient of static friction ? What is the us for each shoe? use the Average Angle for each. { Σ Fy = 0 22° 19° MAX formula provided: fs max = Ms N "point of impending motion" > Aug 19.33 O U sin O - FSMAX =0 W sin 0 = fsmax 3 N-Weos 0 =0 W cos O N W sin 0= Ms N Mog W sin 0= M₂. whi во sin o to us o W cos O Ms HAN - Mlg
Transcribed Image Text:C Shoe #1 15 16 15 14 16. 15° 7 Average 15.17 Shie #2 EF = 22 20 17 16° What is the coefficient of static friction ? What is the us for each shoe? use the Average Angle for each. { Σ Fy = 0 22° 19° MAX formula provided: fs max = Ms N "point of impending motion" > Aug 19.33 O U sin O - FSMAX =0 W sin 0 = fsmax 3 N-Weos 0 =0 W cos O N W sin 0= Ms N Mog W sin 0= M₂. whi во sin o to us o W cos O Ms HAN - Mlg
Read aloud +0 1 of 2 CL 3. Choose two different shoes (sneaker and dress shoe, work boot and slipper, etc.). These can be your own or someone else's (those of spouse, child, friend, etc.) They do not have to be new use whatever you have, in any condition. 4. Place one shoe at one end of a ramp of any material that will not bend or deform under the shoe's weight. (Use wood, metal, plastic, or even heavy-duty cardboard for the ramp.) Make sure the sole of the shoe and the ramp are relatively clean of debris. a. Slowly raise the “shoe end" of the ramp until the shoe begins to slide. Measure and record the angle of the ramp just as sliding begins. You can measure the angle with a protractor or using a height measurement and a trig function. NOTE: The shoe doesn't have to slide all the way down the ramp; actually, you want to capture the angle at which shoe begins to move. b. Do this six times. Note that your angles should be fairly consistent. If any angle seems inconsistent with the other angles, discard it and try again. In the end, you should have six consistent (but not necessarily equal) angles. 5. Repeat the process with the second shoe. Analysis 1. Using the six measured angles for each shoe, find the average angle at which each shoe begins to slide. 2. Using the equation we derive in class, calculate us for each shoe using the average angle for each shoe. Only one calculation is needed for each shoe. 3. Is average us the same for each shoe? How closely does average #s match accepted values? Some accepted values or ranges can be found at https://www.engineeringtoolbox.com/friction- coefficients-d 778.html. If you can't find the coefficient for your combination of materials, google the materials (for example, "coefficient of static friction between leather and cardboard" and see what you can find.) Alternatively, consider some close to your surface materials and note this in your presentation.
Transcribed Image Text:Read aloud +0 1 of 2 CL 3. Choose two different shoes (sneaker and dress shoe, work boot and slipper, etc.). These can be your own or someone else's (those of spouse, child, friend, etc.) They do not have to be new use whatever you have, in any condition. 4. Place one shoe at one end of a ramp of any material that will not bend or deform under the shoe's weight. (Use wood, metal, plastic, or even heavy-duty cardboard for the ramp.) Make sure the sole of the shoe and the ramp are relatively clean of debris. a. Slowly raise the “shoe end" of the ramp until the shoe begins to slide. Measure and record the angle of the ramp just as sliding begins. You can measure the angle with a protractor or using a height measurement and a trig function. NOTE: The shoe doesn't have to slide all the way down the ramp; actually, you want to capture the angle at which shoe begins to move. b. Do this six times. Note that your angles should be fairly consistent. If any angle seems inconsistent with the other angles, discard it and try again. In the end, you should have six consistent (but not necessarily equal) angles. 5. Repeat the process with the second shoe. Analysis 1. Using the six measured angles for each shoe, find the average angle at which each shoe begins to slide. 2. Using the equation we derive in class, calculate us for each shoe using the average angle for each shoe. Only one calculation is needed for each shoe. 3. Is average us the same for each shoe? How closely does average #s match accepted values? Some accepted values or ranges can be found at https://www.engineeringtoolbox.com/friction- coefficients-d 778.html. If you can't find the coefficient for your combination of materials, google the materials (for example, "coefficient of static friction between leather and cardboard" and see what you can find.) Alternatively, consider some close to your surface materials and note this in your presentation.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps with 2 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
First law of motion
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
College Physics
College Physics
Physics
ISBN:
9781305952300
Author:
Raymond A. Serway, Chris Vuille
Publisher:
Cengage Learning
University Physics (14th Edition)
University Physics (14th Edition)
Physics
ISBN:
9780133969290
Author:
Hugh D. Young, Roger A. Freedman
Publisher:
PEARSON
Introduction To Quantum Mechanics
Introduction To Quantum Mechanics
Physics
ISBN:
9781107189638
Author:
Griffiths, David J., Schroeter, Darrell F.
Publisher:
Cambridge University Press
Physics for Scientists and Engineers
Physics for Scientists and Engineers
Physics
ISBN:
9781337553278
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
Lecture- Tutorials for Introductory Astronomy
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:
9780321820464
Author:
Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:
Addison-Wesley
College Physics: A Strategic Approach (4th Editio…
College Physics: A Strategic Approach (4th Editio…
Physics
ISBN:
9780134609034
Author:
Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:
PEARSON
SEE MORE TEXTBOOKS