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IgorLugansk [536]
3 years ago
5

A runner runs 4875 ft in 6.85 minutes. what is the runners average speed in miles per hour?

Physics
2 answers:
yanalaym [24]3 years ago
8 0

The average speed can be easily calculated by taking the ratio of distance and time. That is:

average speed = distance / time

 

so calculating:

average speed = 4875 ft / 6.85 minutes

<span>average speed = 711.68 ft / min</span>

zaharov [31]3 years ago
7 0

<u>Answer</u>:

Speed of the runner is 8.08 miles per hour approximately.

<u>Explanation</u>:

Given:

A runner runs =4875 ft

Time Taken = 6.85 minutes.

To Find:  

Average speed of the runner in miles per hour=?

Solution:

Distance = Speed x time

Conveting feet into miles:

=>Distance= 4875\times\frac{1}{5280} miles

=>Distance = 0.9232955 miles

Converting minutes into hours:

time = 6.85 minutes

=> 6.85\times \frac{1}{60}  hours

=> \frac{6.85}{60}= 0.1141667 hours.

Now, we know that, distance = speed x time  

Then, 0.9232955 miles = speed x 0.1141667 hours  

=>speed = \frac{0.9232955}{0.1141667}

=>speed = 8.08725749

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