Answer:
Focal length
Explanation: No need for one...
Answer: Yep! I made a yt vid on them so look this up:
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Taking into account the definition of speed, the average speed of the Olympic sprinter is 10
<em>.</em>
<h3>What is speed</h3>
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:

<h3>Average speed of the sprinter</h3>
In this case, you know:
- distance traveled= 100 meters
- time= 10 seconds
Replacing these values in the speed definition:

Solving:
<u><em>speed= 10 </em></u>
In summary, the average speed of the Olympic sprinter is 10
<em>.</em>
Learn more about average speed:
brainly.com/question/15273551
brainly.com/question/9834403
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