Patriot911
Rookie
- Dec 7, 2010
- 1,184
- 91
Kinetic energy can only be expelled once. You dont know what you're talking about.
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Look at the example of the semi getting hit by the train. The kinetic energy of the train overcoming the resistance of the semi is used up, but it is a very small fraction of the total kinetic energy of the moving train. Thus the train does not slow down perceptibly. The situation is even worse in the case of the towers because gravity is constantly causing everything to accelerate downwards. Every inch of collapse generates MORE energy through converting the potential energy into kinetic energy.