1. College and Engineering Physics Newton’s Laws 1 TOC First Law - Inertia Second Law – Force and Acceleration Third Law – Action and Reaction Introduction

2. College and Engineering Physics Newton’s Laws 2 TOC Newton’s three laws of motion are… Law #1 Law #2 Law #3 A body at rest will stay at rest unless acted upon by an external agent and a body in motion will remain with the same motion, in a straight line, unless acted upon by an external agent. The force acting on a body is equal to the product of its mass times its acceleration, Each action has an equal an opposite reaction.

3. College and Engineering Physics Newton’s Laws 3 TOC First Law of Motion Law #1 A body at rest will stay at rest unless acted upon by an external agent and a body in motion will remain with the same motion, in a straight line, unless acted upon by an external agent. In other words, a change in a particle’s (body’s) speed or direction can only occur if there is an external force (agent) acting on it. This can also be seen for each component of the force.

4. College and Engineering Physics Newton’s Laws 4 TOC There is something wrong with the way the ball bounces. Do you know what it is? Think about the forces that are present and their directions. Think about Newton’s First Law. Maybe the next animation will help.

5. College and Engineering Physics Newton’s Laws 5 TOC Second Law of Motion Law #2 The force acting on a body is equal to the product of its mass times its acceleration, In other words, the sum of the forces acting on a particle is proportional to its acceleration. The mass is the constant of proportionality.

6. College and Engineering Physics Newton’s Laws 6 TOC Third Law of Motion Law #3 Each action has an equal an opposite reaction. In other words, for every force acting on a particle, there is an equal and opposite force that the particle puts on the object that gave it the original force.

7. College and Engineering Physics Newton’s Laws 7 TOC Name some of the action/reaction pairs in this picture.

8. College and Engineering Physics Newton’s Laws 8 TOC Name some of the action/reaction pairs in this picture.

9. College and Engineering Physics Newton’s Laws 9 TOC Name some of the action/reaction pairs in this picture.

10. College and Engineering Physics Newton’s Laws 10 TOC Name some of the action/reaction pairs in this picture.

11. College and Engineering Physics Newton’s Laws 11 TOC Name some of the action/reaction pairs in this picture.

12. College and Engineering Physics Newton’s Laws 12 TOC Name some of the action/reaction pairs in this picture.

13. College and Engineering Physics Newton’s Laws 13 TOC This is the last slide. Click the back button on your browser to return to the Ebook.