The Average Speed of the runner is 6.25 meters per second. (Answer: D)
The Average Speed of the runner (\(\vec v\)), in meters per second, is the Travelled Distance (\(s\)), in meters, divided by Time (\(t\)), in seconds. We substitute all variables and calculate the result. Please notice that a minute equals 60 seconds.
If we know that \(s = 3000\,m\) and \(t = 480\,s\), then the average speed of the runner is:
\(\bar v = \frac{x}{t}\) (1)
\(\bar v = \frac{3000\,m}{480\,s}\)
\(\bar v = 6.25\,\frac{m}{s}\)
The Average Speed of the runner is 6.25 meters per second. (Answer: D)
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