Physics

Problem

A car travels

150\,\text{m}

north in

30\,\text{s}

and then

150\,\text{m}

south in

60\,\text{s}

. Which option gives the correct pair of (average speed, magnitude of average velocity) for the whole trip? a)

3.3\,\text{m/s},\;3.3\,\text{m/s}

0\,\text{m/s},\;3.3\,\text{m/s}

3.3\,\text{m/s},\;0\,\text{m/s}

2.5\,\text{m/s},\;2.5\,\text{m/s}