Question

Express the following speed in $m/s$ (metres per second):

$60km/hr$

Answer 1

Converting the speed from $\mathit{k}\mathit{m}\mathbf{/}\mathit{h}\mathit{r}$ to $\mathit{m}\mathbf{/}\mathit{s}$.

We know that, $1km/hr=\frac{5}{18}m/s$

$\Rightarrow 60km/hr=60\times \frac{5}{18}m/s$

$\Rightarrow 60\times \frac{5}{18}=\frac{50}{3}m/s$

$\Rightarrow \frac{50}{3}=16\frac{2}{3}m/s$

Hence, $60km/hr$ can be expressed as $16\frac{2}{3}m/s$.