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if you walk 200 meters in 1 minute, 400 meters in 4 minutes and 800 meters in 10 minutes find your average velocity for the whole walk

Sagot :

First, calculate each velocity:

[tex]v=\frac{distance}{time}[/tex]

so:

[tex]v1=\frac{200m}{1min}[/tex][tex]v2=\frac{400m}{4min}=\frac{100m}{min}[/tex][tex]v3=\frac{800m}{10min}=\frac{80m}{min}[/tex]

Now calculate the average between the 3 velocities:

[tex]av\text{ }v=\frac{200+100+80}{3}=\frac{126.67m}{min}[/tex]

The answer is 126.67 m per minute.

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