6. Intro to Forces (Dynamics)

Forces in Connected Systems of Objects

Newton's Third Law Part 5 Boxes Pushed Physics Lessons

Solving Force Problems in Connected Systems of Objects

Systems Connected By Pulleys

Anderson Video - Box with Pulley

Anderson Video - Tension to Keep a Wire Perfectly Horizontal

Newton's 2nd Law (7 of 21) Atwood Machine, Acceleration & Tension (revised)

 Three blocks are placed in line on a frictionless table with block B in between blocks A and C. Block A has a mass of <math display="inline"><mrow><mn>2.0</mn><mo rspace="thickmathspace">&#x2062;</mo><mi mathvariant="normal" class="MathML-Unit">kg</mi></mrow></math>, block B has a mass of <math display="inline"><mrow><mn>4.0</mn><mo rspace="thickmathspace">&#x2062;</mo><mi mathvariant="normal" class="MathML-Unit">kg</mi></mrow></math>, and block C has a mass of <math display="inline"><mrow><mn>6.0</mn><mo rspace="thickmathspace">&#x2062;</mo><mi mathvariant="normal" class="MathML-Unit">kg</mi></mrow></math>. A student pushes horizontally on block A with a force of <math display="inline"><mrow><mn>24</mn><mo rspace="thickmathspace">&#x2062;</mo><mi mathvariant="normal" class="MathML-Unit">N</mi></mrow></math>. What is the magnitude of the force of block B on block C? 

Anderson Video - Two Blocks on a Table

Anderson Video - Newton's Third Law, Two Blocks Tied Together

Anderson Video - Pulley with Two Masses

Newton's 2nd Law (10 of 21) Calculate Acceleration w/o Friction; Table, Pulley, Two Masses

Newton's 2nd Law (19 of 21) Will it Accelerate? Table with Pulley and Two Masses

Newton's 2nd Law (12 of 21) Calculate Acceleration w/o Friction; Inclined Plane, Pulley, Two Masses

 A toy train consists of an engine, followed by a boxcar, followed by a caboose. All have mass m. When the engine’s wheels provide a force F in the forward direction, the train has acceleration a. What is the magnitude of the force of the boxcar on the caboose? Ignore any frictional effects. 

Pulling Two Connected Blocks Upward

Anderson Video - Tension Problem - Part 2

 The three ropes shown in the figure are tied to a steel ring. Two of the ropes are anchored to walls at right angles, and the third rope pulls as shown. If the tension in rope 2 is <math display="inline"><mrow><mn>110</mn><mo rspace="thickmathspace">&#x2062;</mo><mi mathvariant="normal" class="MathML-Unit">N</mi></mrow></math>, what is the mass of the steel ring? <img src="https://media.pearsoncmg.com/aw/aw_knight_physics_5/msa/content/practice-test/img/ex06_02_figure.jpg" class="block" alt="Three ropes share a common connection."> 

Newton's Third Law Part 6 Boxes Pulled Physics Lessons

Three Hanging Blocks

Anderson Video - Tension Problem

Shortcut for Solving Connected Systems of Objects

Box with Pulley | Physics with Professor Matt Anderson | M7-08

 The coefficient of kinetic friction for block A in the figure is 0.2 and the pulley is frictionless. If the mass of block A is <math display="inline"><mrow><mn>2</mn><mo rspace="thickmathspace">&#x2062;</mo><mi mathvariant="normal" class="MathML-Unit">kg</mi></mrow></math>, what is the magnitude of its acceleration? <img src="https://media.pearsoncmg.com/aw/aw_knight_physics_5/msa/content/practice-test/img/cq07_15_figure.jpg" class="block" alt="Two cases of blocks accelerated across a frictionless table."> 

Atwood Machine

A Pulley with Two Masses | Physics with Professor Matt Anderson | M7-07

Learn the toughest concepts covered in Physics with step-by-step video tutorials and practice problems by world-class tutors

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Physics with Professor Matt Anderson

Professor Anderson

1. Intro to Physics Units

2. 1D Motion / Kinematics

3. Vectors

4. 2D Kinematics

5. Projectile Motion

7. Friction, Inclines, Systems

8. Centripetal Forces & Gravitation

9. Work & Energy

10. Conservation of Energy

11. Momentum & Impulse

12. Rotational Kinematics

13. Rotational Inertia & Energy

14. Torque & Rotational Dynamics

15. Rotational Equilibrium

16. Angular Momentum

17. Periodic Motion

18. Waves & Sound

19. Fluid Mechanics

20. Heat and Temperature

21. Kinetic Theory of Ideal Gases

22. The First Law of Thermodynamics

23. The Second Law of Thermodynamics

24. Electric Force & Field; Gauss' Law

25. Electric Potential

26. Capacitors & Dielectrics

27. Resistors & DC Circuits

28. Magnetic Fields and Forces

29. Sources of Magnetic Field

30. Induction and Inductance

31. Alternating Current

32. Electromagnetic Waves

33. Geometric Optics

34. Wave Optics

35. Optical Instruments

36. Special Relativity

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Vertical Forces & Acceleration

Newton's Third Law & Action-Reaction Pairs

Forces in 2D

Newton's First & Second Laws

Equilibrium in 2D

Types Of Forces & Free Body Diagrams

Vertical Equilibrium & The Normal Force

Forces & Kinematics

General Chemistry

Jules

Study the key concepts of Physics with descriptive videos, questions, and more

General Biology

Jason

Financial Accounting

Brian

Dive deep into Psychology with videos, practice problems, and more.

Psychology

Microeconomics

The first in a two-course sequence introduces the basic structure and functions of the human body

Anatomy & Physiology

College Algebra covers algebraic topics and skills necessary to succeed in college-level math

College Algebra

Organic Chemistry

Johnny

Genetics

Kylia

GOB Chemistry

Microbiology

Cell Biology

Analytical Chemistry

Study topics incliding trogonometric functions, identities and equations, solutions of triangles, complex numbers, and other topics as time permits

Trigonometry

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Precalculus

Biochemistry

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Chemistry

Biology

Math

Business

Social Sciences

Michelle Barry Franco

Building Great Presentations

Eric Zackrison, PhD

Critical Thinking And Problem Solving

Sam Bennett

Embracing Times Of Uncertainty

Nicole Tetreault, PhD

Emotional Intelligence Basics

Eugene Choi, PharmD

Enhancing Your Critical Thinking Skills

Jason Richardson, PsyD

Habits To Win Every Day

Alyssa Lowery, PhD

Having Powerful Advanced Conversations

Don Gilman, EdD

How To Influence & Persuade

Amy Matthews

Leadership Skills For Rising Stars

Listening To Lead

Michael Shermer, PhD

Making Decisions Under Uncertainty

Lynne Hurdle

Mistakes To Avoid When Resolving Conflict

Michael Veltri

Overcoming Decision Making Traps

Mike Vardy

Prioritizing Effectively

Secrets Of Effective Prioritization

Strategies To Build Up Your Creativity

Tools For Decision Making

Tutti Taygerly

Unleash And Advance Your Creativity

Winning Collaboration: How To Work More Effectively With Different Personalities

Writing Emails People Want To Read

Critical Thinking

Self Management

Digital Literacy

Collaboration

Communication

Analytical Thinking

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Innovation

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Nicole Tetreault

Dive deep into Python with videos and more.

Introduction to Python

Arianne Dee

Agile Project and Product Management

Agile & Product Management

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Introduction to Microsoft Power BI

Microsoft Power BI

Chris Sorensen

Data Analysis Fundamentals with Excel

Data Analysis - Excel

Chris Sorensen & Ammul Shergill

Getting Started with  and Cryptocurrency

Introduction to Blockchain

George Levy

Learn Enough HTML, CSS and Layout to be Dangerous

HTML, CSS & Layout

Lee Donahoe & Michael Hartl

Learn Enough JavaScript to be Dangerous: A Tutorial Introduction to Programming with JavaScript