how to convert :
1 km/hr to m/s
2 m/s to km/hrs
What is miles and how to convert it into km/hr??
15 m/s = ___.(in km/hr)
If a boat can go with a maximum velocity of 40 km/hr with respect to water in a pond, then what will be the boat's maximum velocity with respect to water in a river flowing at 20 km/hr. (i) upstream (ii) downstream respectively.