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In 200920092009, Usain Bolt set the world record for sprinting 100 \text{ m}100 m100, start text, space, m, end text in approximately 9\dfrac359 5 3 ​ 9, start fraction, 3, divided by, 5, end fraction seconds

2 Answers

7 votes

Answer:

the answer is kind of 10.41 but the real answer is 10 5/12 (khan academy)

Explanation:

just trust me ;)

User Anze Jarni
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3 votes

Answer:

Average speed = 10.41 m/s

Explanation:

It is given that, in 2009, Usain Bolt set the world record for sprinting 100 m on 9 3/5 seconds.

It can be assumed to find her average speed. Speed is equal to total distance covered divided by total time taken.


v=(d)/(t)\\\\v=(100\ m)/(9(3)/(5)\ s)\\\\=(100)/((48)/(5))\ m/s\\\\=(500)/(48)\ m/s\\\\=10.41\ m/s

So, the average speed of Usain Bolt is 10.41 m/s.