This energy that he is claiming will be absorbed by the crumple zone is the energy stored in the motion of the car. The SI unit of kinetic energy is a Nm, which has it own name, the Joule (J). What is...This energy that he is claiming will be absorbed by the crumple zone is the energy stored in the motion of the car. The SI unit of kinetic energy is a Nm, which has it own name, the Joule (J). What is the kinetic energy of a person with 65 kg mass running with a speed of 10 m/s? What is the kinetic energy of a meteorite with 100x less mass than the person above, but entering the atmosphere at 100x greater speed (0.65 kg and 1000 m/s)?
