http://www.youtube.com/watch?feature=fvwp&NR=1&v=R3BZUBzqrZE

From 2:38 to 2:48
The motion Wile E. Coyote does that is impossible is that he keeps a constant speed while traveling over a distance of 490 meters while going up and down hills and making turns left and right. Since it was obvious that he kept a constant speed, we tried to find the distance by using the distance formula. We used d=4.9m/s squared*10 seconds and found taht it was 490 meters, which is too long of a distane to complete with a consistant velocity and in 10 seconds.