Physics

Problem

A runner covers

500\,\text{m}

2\,\text{min}

, then

1.2\,\text{km}

3\,\text{min}

, and finally

300\,\text{m}

1\,\text{min}

. Determine the runner’s average speed in

\text{m/s}

for the entire run. a)

3.3\,\text{m/s}

9.1\,\text{m/s}

5.6\,\text{m/s}

5.3\,\text{m/s}