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In the 2008 Olympics, Jamaican sprinter Usain Bolt shocked the world as he ran the 150-meter dash in 7.83 seconds. Determine Usain's average speed for the race. |
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Answer» Answer: 19.1570 m/s Explanation: s = 100 m t = 7.83 s v = s/t = 100/7.83 = 19.1570 m/s = 19 m/s (APPROX.) in Km/h = 19.570 * 1000/3600 = 5.3213 Km/h = 5 Km/h (approx.) |
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