108 km/h =___ m/s

The correct option is B

30 $\frac{m}{s}$

We know,1 $\frac{km}{h}$ = $\frac{5}{18}$ $\frac{m}{s}$

Now 108 $\frac{km}{h}$ = 108 $\times$ 1 $\frac{km}{h}$

= 108 $\times$ $\frac{5}{18}$ $\frac{m}{s}$

= 6 $\times$ 5 $\frac{m}{s}$

= 30 $\frac{m}{s}$