Question

amswer me all question plz plz plz plz​

Answer 1

Step-by-step explanation:

1km=1000m

1 hour =60min

So,

1) 9*1000/60*60=9000m/3600sec.

2)1.2*1000/60=1200m/60sec

3)600/60*60=600m/3600sec.

Hope it helps u.

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Answer 2

(ii) 9 km/h= 9*1000/3600 m/sec

               =9000/3600 m/sec

               =10/4 m/sec

               =2.5 m/sec (ans)

(iii)1.2km/min=1.2*1000/60m/sec

                    =12*100/60m/sec

                    =2*10m/sec

                    =20m/sec (ans)