Temple University: Gerardo Mendoza and Dan Reich's "Calculus on the Web"

Click on the "Index" for Book II. Scroll down to "2. Applications of Integration," and click button 125 (Arc Length). Work on all of the problems (1-9). If at any time a problem set seems too easy for you, feel free to move on.

Click http://cow.math.temple.edu/ link to open resource.