Physics

Problem

A boy jogs

300\,\text{m}

north in

2\,\text{min}

and immediately jogs

400\,\text{m}

south in

3\,\text{min}

. Find the magnitudes of his average speed and average velocity for the entire

5\,\text{min}

journey. a)

2.3\,\text{m/s},\;2.3\,\text{m/s}

0.33\,\text{m/s},\;2.3\,\text{m/s}

2.3\,\text{m/s},\;0.33\,\text{m/s}

2.36\,\text{m/s},\;0.14\,\text{m/s}