Question

A bus is going at a speed of 72, km/
hour. What is its speed in m/sec.?​

Answer 1

Step-by-step explanation:

a kilometre is what its name says - 1000 metres. Therefore 72 km is 72,000 metres.

An hour is 60 minutes. A minute is 60 seconds, so there are 60x60=3600 seconds in an hour. So 72km/h = 72,000 m/h = 72,000/3600 m/s

Answer 2

speed in km =72km/h

1 km =1000m

1 minute=60 s

(72)×1000/60

72000/60=1200

1200 m/s