Physics

Problem

A cyclist travels

12\,\text{km}

due east in

0.5\,\text{h}

and then returns to the starting point along the same road in

0.3\,\text{h}

. What is the magnitude of the cyclist's average velocity for the whole trip? a)

15\,\text{km/h}

0\,\text{km/h}

30\,\text{km/h}

24\,\text{km/h}