Calculate the speed in of a car moving at .

MATHEMATICS · Single correct · CBSE · Mathematics · Proportional Reasoning · Proportional Reasoning

Problem

Calculate the speed in

\text{m s}^{-1}

of a car moving at

72\,\text{km h}^{-1}

. (a)

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

(b)

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

(c)

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

(d)

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