6. Intro to Forces (Dynamics)

Newton's Third Law & Action-Reaction Pairs

Newton's Third Law Part 1 Physics Lessons

 Taylor exerts a greater amount of force on Josh than Josh exerts on Taylor. 

 Josh exerts a greater amount of force on Taylor than the Taylor exerts on Josh. 

 It depends upon exactly how Taylor pushes. 

 Taylor exerts the same amount of force on Josh as Josh exerts on Taylor. 

 Taylor (150 lbs.) and Josh (200 lbs.) are standing on frictionless ice. Taylor pushes on Josh. During the push which person exerts the greater force on the other? 

Newton's 3rd Law

Friction on the book from the floor & friction on the floor from the book

Weight of the book from the Earth & gravitational force on the Earth from the book

Weight of the book & normal force on the book

Normal force on the book from the floor & normal force on the floor from the book

<p>Which of the options is NOT an action-reaction pair in the following situation? A book slides across the floor, slowing down due to friction.</p>

Newton's Three Laws of Motion (Clear and Easy to Follow)

 Josh experiences a greater acceleration than Taylor. 

 Taylor and Josh have the same acceleration. 

 It depends upon exactly how Taylor pushes on Josh. 

 Taylor experiences a greater acceleration than Josh. 

 Taylor (150 lbs.) and Josh (200 lbs.) are standing on frictionless ice. Taylor pushes on Josh. During the push who experiences the greater magnitude of acceleration? 

Anderson Video - Newton's Third Law Introduction

Newton's Third Law

Anderson Video - Newton's Third Law

A small car of mass 380 kg is pushing a large truck of mass 900 kg due east on a level road. The car exerts a horizontal force of 1600 N on the truck. What is the magnitude of the force that the truck exerts on the car?

 The force of the ground on the ball is greater than the force of the ball on the ground. 

 The force of the ball on the ground is greater than the force of the ground on the ball. 

 There is not enough information to answer this question because we don’t know the mass of the ball. 

 The force of the ball on the ground is exactly the same as the force of the ground on the ball. 

 Ryan bounces a small rubber ball on the ground. During the bounce when the ball is in contact with the ground, how does the magnitude of the force of the ball on the ground compare to the magnitude of the force of the ground on the ball?   

Newton's Third Law - Introduction | Physics with Professor Matt Anderson | M7-01

 The weight of the book does not occur as part of an action/reaction pair. 

 The normal force from the table on the book 

 The normal force from the book on the table 

 The force of gravity on the earth due to the book 

 A book is at rest on a horizontal table. The main forces acting on the book are the normal force from the table and the weight of the book. What is the best description of Newton’s third law reaction force to the weight? 

Newton's Third Law Part 2 Physics Lessons

Boxes A and B are in contact on a horizontal, frictionless surface (Fig. E4.23). Box A has mass 20.0 kg and box B has mass 5.0 kg. A horizontal force of 250 N is exerted on box A. What is the magnitude of the force that box A exerts on box B? (image)

Newton's Third Law | Physics with Professor Matt Anderson | M7-03

Newton's Third Law of Motion: Action and Reaction

World-class sprinters can accelerate out of the starting blocks with an acceleration that is nearly horizontal and has magnitude 15 m/s2. How much horizontal force must a 55-kg sprinter exert on the starting blocks to produce this acceleration? Which body exerts the force that propels the sprinter: the blocks or the sprinter herself?

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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

Forces in 2D

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Forces in Connected Systems of Objects

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Types Of Forces & Free Body Diagrams

Vertical Equilibrium & The Normal Force

Forces & Kinematics

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