Question

express each of the following speeds in km/h
(i) 18 m/s
(ii) 45 m/s
(iii) 65 m/s
(iv) 80 m/s​

Answer 1

Step-by-step explanation:

18m/s = 18*1000/3600 km/h

= 180/36km/h

=5km/h

same goes for all

45m/s=12.5km/h

65m/s=18.05km/h

80m/s=22.2km/h