In 2009, the 94 kg Jamaican sprinter, Usain Bolt, set the World Record for the 100 m sprint, posting a time of 9.58 s. Considering that he covered the first 10 m of this race in 1.89 s, how much linear kinetic energy did he use over this distance?

Question

Quizplus · Accepted Answer

Calculate velocity over first 10m: v = 10 / 1.89 v = 5.291005 m/s Using the equation: Energylinear kinetic = 1/2 × m × v² Energylinear kinetic = 1/2 × 94 × 5.291005² Energylinear kinetic = 1315.75 Joules

In 2009, the 94 Kg Jamaican Sprinter, Usain Bolt, Set