Question

A car is accelerating at $12m/s^2$ . Find its acceleration in $km/h^2$.

• A. $155555$
  
• B. $100000$
  
• C. $155520$
  
• D. $525252$
  

Answer 1

Answer: (C)

$155520$

We know that $1km=1000m$ and $1hr=3600s$

So, $1m=0.001km$ and $1s=1/3600hr$

Thus, $12m/s^2=\frac{12\times 0.001}{(1/3600{)}^2}km/h{r}^2=155520km/h^2$