Question

90 $\frac{km}{h}$ = ___ $\frac{m}{s}$

• A. 25m/s
• B. 20m/s
• C. 324 m/s
• D. none of the above

Answer 1

The correct option is A

25m/s

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

Now 90 $\frac{km}{h}$ = 90 $\times$ 1 $\frac{km}{h}$

= 90 $\times$ $\frac{5}{18}$ $\frac{m}{s}$

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

= 25 $\frac{m}{s}$