Question

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.​

Answer 1

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

$speed = \frac{d}{t}$

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

$speed = \frac{100}{9.69}=10.3 m/s$

Learn more about speed:

brainly.com/question/8893949

#LearnwithBrainly