The Coolest Commercial, Check it out, it's awsome! Options

http://home.attbi.com/~bernhard36/honda-ad.html

yeah, yeah, yeah. It's a honda commercial, but you will enjoy it. trust me. (IMG:style_emoticons/default/mueba.gif)

Read this after:

http://www.dailytelegraph.co.uk/news/main..../13/ixhome.html

[Curvie Roadlover]

Since the tire's mass (m) and the acceleration due to gravity (g) are both
constant, the critical points of the tire's potential energy (mgh) equation
are determined completely by the
the height of the tire's center of mass above the ground h = y =
r*[1+cos(a)] + r*a*sinb. For fixed r and b, dy/da = r*sinb - r*sin(a). The
critical numbers occur when r*sinb = r*sin(a), when a = b or a = [pi - b].
When the ramp makes an angle of b with the ground, the first critical number
occurs at an angle of a = b. You can verify that a = b produces a local
maximum. Therefore the tire has its maximum potential energy when a = b and
as the tire rolls further up the ramp its PE decreases until the angle a =
[pi - b] when it reaches a local minimum.

Here is a graph for y = r*[1+cos(a)] + r*a*sinb for the specific case when r
= 10 and b = pi/3. (In this graph x = a).

(IMG:http://persweb.direct.ca/aschwenk/PE.jpg)

I was just gonna say that.