1.

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.

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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