10 m/s = _______ km/hr

$1 \mathrm{km}= 1000\mathrm{m}$

$\therefore 1\mathrm{m} = \frac{1}{1000} \mathrm{km}$

$1 \mathrm{hr}= 60 \min = 60 \times 60 \mathrm{s}$

$\therefore 1\mathrm{s} = \frac{1}{60 \times 60} \mathrm{hr}$

$\therefore 1 \mathrm{m}/\mathrm{s} = \frac{1/1000 \mathrm{km}}{1/60 \times 60 \mathrm{hr}}$

$\Rightarrow 1 \mathrm{m}/\mathrm{s} = \frac{60 \times 60 \mathrm{km}}{1000 \mathrm{hr}}=\frac{18}{5}\mathrm{km}/\mathrm{hr}$

$\Rightarrow 10 \mathrm{m}/\mathrm{s} = \frac{10 \times 18}{5}\mathrm{km}/\mathrm{hr} = 36 \mathrm{km}/\mathrm{hr}$

Therefore, 10 m/s is equal to 36 km/hr.