Question

express a speed of 30m/s in km/h

Answer 1

30 m/s

Find distance traveled in 1 hour:

1 second = 30 m

1 min = 30 x 60 = 1800 m

1 hour = 1800 x 60 = 108000 m

Convert metre to kilometre

1 hour = 108000 m

1 hour = 108000 ÷ 1000 = 108 km

Answer: 108 km/hour

Answer 2

30 x 18/5 km/h
= 6x18 km/h
= 108 km/h
☺☺