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A Brief Look at the Force of Drag using Numerical Modeling (or The Euler Method)
| Content Provider | WatchKnowLearn |
|---|---|
| Description | This is how you include air resistance in projectile motion. It requires the Drag Force and Numerical Modeling (or the Euler Method). It is also very helpful to use a spreadsheet to do the calculations. I prove a statement from a previous projectile motion problem video, "Air resistance decreases the x displacement of the ball by less than 1 cm." Content Times: 0:22 The statement this video proves 1:01 The basic concept of air resistance 1:54 The Free Body Diagram 2:20 The Drag Force Equation 3:13 Information about the Lacrosse Ball 4:03 The Drag Coefficient 4:55 The Density of Air 5:18 How the Drag Force affects the motion 5:58 The basic idea of Numerical Modeling (or the Euler Method) 6:50 Solving for the acceleration in the x direction 8:53 Solving for the final velocity in the x direction 9:54 Solving for the final position in the x direction 11:41 Entering the Lacrosse Ball information into Excel 13:34 Solving for the Drag Force in x direction in Excel 14:29 Solving for the acceleration in the x direction in Excel 14:58 Solving for the final velocity and final position in the x direction in Excel 15:46 Solving for the acceleration in the y direction 17:21 Solving for all the variables in the y direction in Excel 19:13 Click and Drag Copy. Harnessing the Power of Excel! 19:43 Understanding the numbers in Excel 20:35 Solving for the decrease in the x displacement caused by the Drag Force Want lecture notes & the Excel File? The original problem videos for this are: (part 1 of 2) An Introductory Projectile Motion Problem with an Initial Horizontal Velocity (part 2 of 2) An Introductory Projectile Motion Problem with an Initial Horizontal Velocity How Many Attempts did it Really Take? - with live music from Amos Lee Next Problem: Nerd-A-Pult – An Introductory Projectile Motion Problem 1¢/minute |
| Language | English |
| Access Restriction | Open |
| Rights License | Proprietary |
| Subject Keyword | Friction k-12 homeschool homeschooling home school parents educational videos k12 preK-12 Physics Mechanics Forces Science Force & Balance |
| Content Type | Video |
| Educational Role | Student Teacher |
| Educational Use | Self Learning Lecture |
| Pedagogy | Lecture cum Demonstration |
| Resource Type | Video Lecture |
| Subject | Balanced and Unbalanced Forces |
