Question

Whuly we should add 5/18 while converting kilometer Into meter

Answer 1

We multiply 5/18 while converting speed from km/h to m/s because 1 km/h is equal to 5/18 m/s

Here is how:

1km = 1000m
1h = 3600 s

1 km/h
= 1km / 1h
= 1000m / 3600 s
= 5×200m / 18×200 s
= 5m / 18s
= 5/18 m/s

Thus 1km/h = 5/18 m/s