Question

180 km/h =___ m/s

• A. 100 $\frac{m}{s}$
• B. 50 $\frac{m}{s}$
• C. 120 $\frac{m}{s}$
• D. 70 $\frac{m}{s}$

Answer 1

The correct option is B

50 $\frac{m}{s}$

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

Now 180 $\frac{km}{h}$ = 180 $\times$ 1 $\frac{km}{h}$

= 180 $\times$ $\frac{5}{18}$ $\frac{m}{s}$

= 10 $\times$ 5 $\frac{m}{s}$

= 50 $\frac{m}{s}$