The Ultimate Brakeless/Front/Rear/How many brakes? thread

What are the physics behind doing "whip skids" and pushing the back wheel out to the side?
I guess it would be exactly the same as a normal skid. It all depends on how far forward or back your bodyweight is. It could be that you naturally lean back a bit more as you whip skid so you get more weight on the back and slow down quicker.

Does science agree that it makes you stop faster? Can you use science to test whether it makes you look cooler?
Yes. Linear relationship between angle of bike relative to the road and level of coolness. Unless you happen to hit something or something hit you because you should have use the front brake instead!