Question

A car travels a distance of 15km in 20 mins find the speed of the car in km/h-1and m/s-1​

Answer 1

V=s/t

In m/s; 15km/20 min = 15000 m/ 1200s = 150m/12s =12.5 m/s

In km/h;

Since 1 h =60 min

So, 20 min = 20/60 h

Finally in decimal form 20 min = 0.333 h

Coming back to the question,

15km/20min = 15km/0.333h= 45 km/h