Question

The velocity of a car is 18m/s. Express this velocity in km/h.

• A. 70 km/ hr
• B. 64.8 km/h
• C. 76 km/h
• D. 65.7 km/h

Answer 1

The correct option is B

64.8 km/h

($\frac{m}{sec}$) * ($\frac{3600sec}{1hr}$) * $\frac{1km}{1000m}$ = $\frac{3600}{1000}$ = 3.6

1 $\frac{m}{sec}$ = 3.6 $\frac{km}{hr}$

18 $\frac{m}{sec}$ = ?

Answer = 18 * 3.6 $\frac{km}{hr}$ = 64.8 $\frac{km}{hr}$