O'Reilly logo

Mrs. Perkins's Electric Quilt by Paul J. Nahin

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Air Drag A Physical View

It is common to find in textbooks a linear drag law of the form ku, where k is independent of speed. This yields an equation of motion that is readily solved at the expense of the solution being largely irrelevant.

—Craig F. Bohern, “Dimensional Analysis, Falling Bodies, and the Fine Art of Not Solving Differential Equations”

5.1 The Quadratic Force Law

In the first discussion on air drag I wasn’t terribly concerned about the actual applicability of our results to the real world. That is, while I limited myself to physically plausible air drag force laws, I didn’t take the next step of asking which ones are the force ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required