In 2009, the 94 kg Jamaican sprinter, Usain Bolt, set the 100 m sprint World Record with a time of 9.58 seconds. His linear velocities for the 50-70m and 90-100m splits were a) 12.3 m/s and b) 12.0 m/s, respectively. How many Joules of linear kinetic energy would he be using to complete each of these 10 m splits?
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