What is the kinetic energy of a person with 65kg mass runing at a speed of 8 m/s?_________ what is the kinetic ernegy of a meteorite with 100x less mass than the person above, but entering the atmosphere at 100x greater speed (0.65kg at 800 m/s)? _________ J which is larger, the KE of the runner of the meteorite?________ What matters more in determining kinetic energy; mass or speed? _____________