Question

converta 40m/s em kn/h

Answer 1

1 km/ 1000m = x / 40m

1000x = 40 km

x =  0,04 km = 40 m

1h / 3600s = x / 1s

3600x = 1h

x =  1h / 3600 = 1s

v = d / t

v = 0,04 / 1 / 3600

v = 144

------------------------ > 144 km/h