If you hold your feet flat or point them, does it change how far you slide. This video shows the answer and explains why using the concept of drag force.
0:26 Showing the two foot positions
0:57 Defining aerodynamic
1:41 Defining the Drag Force
2:32 A closer look at the cross sectional area
4:04 Showing the answer
5:05 Comparing splashes
5:43 A second demonstration
6:22 Many thanks
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Another Drag Force Video: [url="http://www.flippingphysics.com/the-euler-method.html"]A Brief Look at the Force of Drag using Numerical Modeling (or The Euler Method)[/url]
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