Question

the distance between the house and the market is 7.2 km if a man takes 10 metre to reach to market calculate speed in metre per second also Express at 10 kilometre per hour

Answer 1

if 10 m is 10 s
then here is your answer
s=7.2km=7.2×1000m=7200m
t=10s
v=s/t=7200m/10s=720m/s