in the 2008 olympics,Jamaican sprinter Usain Bolt shocked the world as he ran the 100 meter dash in 9.69 seconds. Determine Usains average speed for the race.​

Respuesta :

His average speed is 10.3 m/s

Explanation:

In this problem, Bolt is moving by uniform motion (=constant velocity and constant speed), so its average speed is given by

[tex]speed = \frac{d}{t}[/tex]

where

d is the distance covered

t is the time taken

In this race, Bolt has covered a distance of

d = 100 m

In a time of

t = 9.69 s

Therefore, his average speed is

[tex]speed = \frac{100}{9.69}=10.3 m/s[/tex]

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