Question

An Olympic sprinter completes the 100 m race in a time of 10 s. Calculate the average speed of the sprinter.

Answer 1

Taking into account the definition of speed, the average speed of the Olympic sprinter is 10 $\frac{m}{s}$.

What is speed

Speed ​​is a physical quantity that expresses the relationship between the space traveled by an object and the time used for it.

In other words, speed can be defined as the amount of space traveled per unit of time with which a body moves and can be calculated using the expression:

$speed=\frac{distancetraveled}{time}$

Average speed of the sprinter

In this case, you know:

• distance traveled= 100 meters
• time= 10 seconds

Replacing these values ​​in the speed definition:

$speed=\frac{100 m}{10 s}$

Solving:

speed= 10 $\frac{m}{s}$

In summary, the average speed of the Olympic sprinter is 10 $\frac{m}{s}$.

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