Physics

Problem

A bus travels

300\,\text{m}

20\,\text{s}

and then another

200\,\text{m}

30\,\text{s}

, all along the same straight road. What is its average speed for the whole trip? a)

6.7\,\text{m/s}

9.2\,\text{m/s}

10\,\text{m/s}

11\,\text{m/s}