Question

Express each of the following speeds in metre per second.
(a) 72 km per hour
(b) 18 km per hour
(C) 144 km per hour ​

Answer 1

Answer:

a) 72 km/h = 72 × 5/18 = 20 m/s.

b) 18 kilometres per hour =

5 metres per second

C) 144 kilometres per hour =

40 metres per second

Step-by-step explanation:

I hope it will help u