Question

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

• A. 100 $\frac{km}{h}$
• B. 208 $\frac{km}{h}$
• C. 108 $\frac{km}{h}$
• D. 118 $\frac{km}{h}$

Answer 1

The correct option is C

108 $\frac{km}{h}$

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

$\Rightarrow$ 1 $\frac{m}{s}$ = $\frac{18}{5}$ $\frac{km}{h}$

Now 30 $\frac{m}{s}$ = 30 $\times$ 1 $\frac{m}{s}$

= 30 $\times$ $\frac{18}{5}$ $\frac{km}{h}$

= 6 $\times$ 18 $\frac{km}{h}$

= 108 $\frac{km}{h}$