Question

In 2009, Usain Bolt set the world record for sprinting 100 m in approximately 9 and 5/ 3 seconds. Find his average speed in meters per second.

Answer 1

Answer:

The average speed of Usain Bolt is 9.38 m/s

Step-by-step explanation:

It is given that,

Distance covered by Usain Bolt, d = 100 m

Time taken, $t=9\dfrac{5}{3}\ s=10.66\ s$

Let v is the average speed of Usain Bolt. The total distance covered divided by total time taken is called the average speed of an object. Mathematically, it  is given by :

$v=\dfrac{d}{t}$

$v=\dfrac{100\ m}{10.66\ s}$

v = 9.38 m/s

So, the average speed of Usain Bolt is 9.38 m/s. Hence, this is the required solution.