Physics

Problem

An automobile is at the kilometre marker

12.0\,\text{km}

t = 1.0\,\text{min}

and at the kilometre marker

34.0\,\text{km}

t = 3.5\,\text{min}

. Calculate its average velocity during this interval in

\text{m}\,\text{s}^{-1}

, giving your answer to two significant figures.