As I looked at the some of the tricks we perform for dragon dance, I realized how friction plays a factor in reducing energy. The dragon to the left shows that as the dragon coil circles down the line, the energy decreases due to friction and the overall circle gets smaller. The decrease in the height of the dragon is due to the decrease in change of potential energy. The friction between the air and the dragon causes the players in the back to encounter more force against their motions. As the spiral moves along the dragon's length, the distance of friction acting on the dragon increases, while the work stays the same. But evident in the decreasing size of the spiral, there is a decrease in overall energy of the system due to friction, air resistance, and the guys in the back being tired out. They were probably tired out from doing the other work double ten weekend requires.
No comments:
Post a Comment