This document provides an overview of forces and Newton's laws of motion. It discusses different types of forces, including fundamental forces like gravity and electromagnetic forces. It explains net force as the sum of all forces acting on an object. Newton's three laws of motion are reviewed, including inertia, acceleration proportional to force, and equal and opposite reaction forces. Linear and angular momentum are introduced, where momentum is mass times velocity and angular momentum is the rotational equivalent based on moment of inertia. Conservation of momentum and angular momentum are emphasized. Examples and demonstrations are provided to illustrate key concepts.
Have you gone above the speed limit or driven without a license and gotten away? Well, you can’t get away with breaking the laws of physics! This session will highlight:
• Why loads rotate, shift and swing
• Load Stability and how to understand and control mobility
• Predicting outcomes of load moving based on physical laws
• Internal and external forces and restraint
• Choosing the most economical and practical equipment for a job
Speaker: Don Mahnke, President, Hydra-Slide, Ltd.
Have you gone above the speed limit or driven without a license and gotten away? Well, you can’t get away with breaking the laws of physics! This session will highlight:
• Why loads rotate, shift and swing
• Load Stability and how to understand and control mobility
• Predicting outcomes of load moving based on physical laws
• Internal and external forces and restraint
• Choosing the most economical and practical equipment for a job
Speaker: Don Mahnke, President, Hydra-Slide, Ltd.
This is lecture 5, Wave interference, standing waves, resonance, intro to sound waves. For Conceptual Physics course, Physics 102, at University of New Mexico. Koch's section.
This is lecture 5, Wave interference, standing waves, resonance, intro to sound waves. For Conceptual Physics course, Physics 102, at University of New Mexico. Koch's section.
Newton's First Law of Motion: I. Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it. This we recognize as essentially Galileo's concept of inertia, and this is often termed simply the "Law of Inertia".
NIDM (National Institute Of Digital Marketing) Bangalore Is One Of The Leading & best Digital Marketing Institute In Bangalore, India And We Have Brand Value For The Quality Of Education Which We Provide.
www.nidmindia.com
This comprehensive program covers essential aspects of performance marketing, growth strategies, and tactics, such as search engine optimization (SEO), pay-per-click (PPC) advertising, content marketing, social media marketing, and more
Exploring Career Paths in Cybersecurity for Technical CommunicatorsBen Woelk, CISSP, CPTC
Brief overview of career options in cybersecurity for technical communicators. Includes discussion of my career path, certification options, NICE and NIST resources.
Want to move your career forward? Looking to build your leadership skills while helping others learn, grow, and improve their skills? Seeking someone who can guide you in achieving these goals?
You can accomplish this through a mentoring partnership. Learn more about the PMISSC Mentoring Program, where you’ll discover the incredible benefits of becoming a mentor or mentee. This program is designed to foster professional growth, enhance skills, and build a strong network within the project management community. Whether you're looking to share your expertise or seeking guidance to advance your career, the PMI Mentoring Program offers valuable opportunities for personal and professional development.
Watch this to learn:
* Overview of the PMISSC Mentoring Program: Mission, vision, and objectives.
* Benefits for Volunteer Mentors: Professional development, networking, personal satisfaction, and recognition.
* Advantages for Mentees: Career advancement, skill development, networking, and confidence building.
* Program Structure and Expectations: Mentor-mentee matching process, program phases, and time commitment.
* Success Stories and Testimonials: Inspiring examples from past participants.
* How to Get Involved: Steps to participate and resources available for support throughout the program.
Learn how you can make a difference in the project management community and take the next step in your professional journey.
About Hector Del Castillo
Hector is VP of Professional Development at the PMI Silver Spring Chapter, and CEO of Bold PM. He's a mid-market growth product executive and changemaker. He works with mid-market product-driven software executives to solve their biggest growth problems. He scales product growth, optimizes ops and builds loyal customers. He has reduced customer churn 33%, and boosted sales 47% for clients. He makes a significant impact by building and launching world-changing AI-powered products. If you're looking for an engaging and inspiring speaker to spark creativity and innovation within your organization, set up an appointment to discuss your specific needs and identify a suitable topic to inspire your audience at your next corporate conference, symposium, executive summit, or planning retreat.
About PMI Silver Spring Chapter
We are a branch of the Project Management Institute. We offer a platform for project management professionals in Silver Spring, MD, and the DC/Baltimore metro area. Monthly meetings facilitate networking, knowledge sharing, and professional development. For event details, visit pmissc.org.
The Impact of Artificial Intelligence on Modern Society.pdfssuser3e63fc
Just a game Assignment 3
1. What has made Louis Vuitton's business model successful in the Japanese luxury market?
2. What are the opportunities and challenges for Louis Vuitton in Japan?
3. What are the specifics of the Japanese fashion luxury market?
4. How did Louis Vuitton enter into the Japanese market originally? What were the other entry strategies it adopted later to strengthen its presence?
5. Will Louis Vuitton have any new challenges arise due to the global financial crisis? How does it overcome the new challenges?Assignment 3
1. What has made Louis Vuitton's business model successful in the Japanese luxury market?
2. What are the opportunities and challenges for Louis Vuitton in Japan?
3. What are the specifics of the Japanese fashion luxury market?
4. How did Louis Vuitton enter into the Japanese market originally? What were the other entry strategies it adopted later to strengthen its presence?
5. Will Louis Vuitton have any new challenges arise due to the global financial crisis? How does it overcome the new challenges?Assignment 3
1. What has made Louis Vuitton's business model successful in the Japanese luxury market?
2. What are the opportunities and challenges for Louis Vuitton in Japan?
3. What are the specifics of the Japanese fashion luxury market?
4. How did Louis Vuitton enter into the Japanese market originally? What were the other entry strategies it adopted later to strengthen its presence?
5. Will Louis Vuitton have any new challenges arise due to the global financial crisis? How does it overcome the new challenges?
1. Today: Finish Newton’s laws,
Linear and Angular Momentum
Newton’s Cradle: Dominique Toussaint on wikipedia
2. Exam #3 curved results
0
5
10
15
20
25
A+
A
A-
B+
B
B-
C+
C
C-
D+
D&Lower
Numberofstudents
3. FORCE…What is a force?
What can force do?
Force changes the motion of an object
gravitational force is responsible for the
elliptical orbit of the Earth / Sun.
frictional force slows down a sliding hockey
puck.
Force causes deformations in an object
electrical force causes nucleus to deform
applied force can cause a spring to stretch or
compress
4. FORCE…What is a force?
What kind of forces are there?
Fundamental: Gravity, Electromagnetic, strong, weak
Practical: Gravitational, electrical, magnetic, frictional, drag
“stretchy”, contact (hard objects)
All of these can be measured in units of “force”
Pounds or Newtons are common. 2.2 lbs. =~ 10 Newtons.
(1 kg weighs 10 Newtons on Earth)
5. A little bit about “net force”
Forces have a directionality
“Net Income” = profit after adding up all the plusses and
minuses.
“Net Force” = force after adding up all the up, down, left,
right and diagonal force vectors
Zero
10 Lbs 10 Lbs
“10 Lbs up + 10 Lbs down
= zero net force”
10 Lbs
45 deg. up
10 Lbs
45 deg. down
“10 pounds up and to the right +
10 pounds down and to the right
= 14 pounds to the right”
14 lbs right
6. Newton’s three laws of motion: review of 1st
two
1. Inertia: An object’s motion will not change unless
acted on by an external force.
2. Acceleration is proportional to force. a = F / m
7. Let’s look some more at
Newton’s first two laws, and inertia
http://www.youtube.com/watch?v=Hyw9uNF4nmE&feature=related
(excellent lecture on inertia)
(Last week we did some of our own lecture demos
(table cloth, smashing hand))
And watch this famous demo:
http://www.youtube.com/watch?v=_TKe5rBJeYc
8. Newton’s third law of motion.
“When two objects interact, the forces they exert on each other
are equal and opposite”
“For every action, there is an equal and opposite reaction.”
“For an isolated system, there is conservation of
momentum”
The Sun cannot attract the Earth without the Earth attracting the
sun…You cannot push on the bumper of a car without the
bumper of the car pushing on you.
Force Force
http://www.youtube.com/watch?
v=8deNwoczCPc&feature=related
Canon recoil
9. Linear Momentum
Also just referred to as “momentum”
Momentum is proportional to mass
Momentum is proportional to velocity (speed)
Momentum is a vector (we won’t use these)
Momentum = mass x velocity
p =m v
Like total energy, linear momentum is conserved…
cannot be created or destroyed.
Conservation of momentum is reflected
in Newton’s 1st
and 3rd
laws.
Force Force
http://canu.ucalgary.ca/map/content/force/newton3/
exploding_blocks/applet.html
10. Let’s think about conservation of momentum
Newton’s cradle demo
Momentum conserved, kinetic energy NOT conserved.
momentum = mass * velocity
kinetic energy = ½ mass * (velocity)2
“Elastic collision”
total kinetic energy
conserved
“inelastic collision”
kinetic energy lost via heat flow
Newton’s Cradle: Dominique Toussaint on wikipedia
11. Brainstorming session
Part 1 – Think of examples where linear momentum appears to NOT be conserved
Throwing clay at the wall; Car crash—inelastic collision car smashing into steel
pole; bullet into bullet proof vest; bird against the window; skier into tree; drop
something onto the ground;
Part 2 – one object was at rest other in motion, both end up at rest; objects
change shape (accounts for the inelasticity or loss of kinetic energy); always a
smaller object crashing into a much bigger object.
12. Clicker question—conservation of momentum
Consider a car at rest at a stop light. When the light
turns green, the car accelerates up to a speed of
60 mph. The momentum went from zero to
something much more than zero! Does this violate
the law of conservation of momentum???
A) Yes
B) No
13. Clicker question—conservation of momentum
Consider a car at rest at a stop light. When the light
turns green, the car accelerates up to a speed of
60 mph. The momentum went from zero to
something much more than zero! Does this violate
the law of conservation of momentum???
A) Yes
B) No
It really is a very good law of physics, so has to be “no.”
But where did the momentum come from?
14. Angular momentum is the momentum of spinning or orbiting.
For linear momentum, recall:
Momentum is proportional to mass
Momentum is proportional to velocity (speed)
momentum = mass x velocity
momentum = inertia x velocity
Angular momentum is similar:
Angular momentum is proportional to rotational inertia
Angular momentum is proportional to rotational speed
angular momentum = rotational speed x moment of inertia
Complicated!!!
15. Moment of inertia (rotational “mass”)
The further the mass from the rotation axis, the
higher the moment of inertia.
angular momentum = rotational speed x moment of inertia
16. Clicker Question—Angular Momentum
Two spinning tops have exactly the same mass and
are spinning at exactly the same angular rate
(e.g., 1000 rpm). Which of them would have more
angular momentum?
A B C
Exactly the Same
17. Clicker Question—Angular Momentum
Two spinning tops have exactly the same mass and
are spinning at exactly the same angular rate
(e.g., 1000 rpm). Which of them would have more
angular momentum?
A B C
Exactly the Same
Mass farther away from axis contributes
more to angular momentum
18. Angular momentum is conserved also!
Like total energy and linear momentum, there is “conservation of
angular momentum”…cannot be created or destroyed
If two objects are spinning in opposite directions, they have
opposite angular momentum.
“right hand rule”
Angular momentum “up”
“positive”, “spin up”
Angular momentum “down”
“negative”, “spin down”
19. Clicker question—”right hand rule”
Say I spin a top on a table. Looking at the top
from above, it is rotating counter-clockwise.
Is this top “spin up” or “spin down”?
A) spin up
B) spin down
View from above
20.
21. Clicker question—”right hand rule”
Say I spin a top on a table. Looking at the top
from above, it is rotating counter-clockwise.
Is this top “spin up” or “spin down”?
A) spin up
B) spin down
View from above
22. Does this violate law of
conservation of angular momentum?
Falling cat and angular momentum…
23. First, I want to point out how dangerous this is.
In this case, the falling cat JUST MISSED a sleeping baby!!!
Cat shaped hole
in mattress
Oblivious
sleeping baby
24. At beginning and end, cat has
Zero angular momentum.
In between it’s diffuclt to see, but
total angular momentum still zero.
We maybe can demonstrate this with
the spinning chair???
Falling cat does not violate conservation of angular momentum
25. Let’s play with some demos of
“conservation of angular momentum!”
Spinning chair / dumbells
Bicycle wheel / chair