Question

2. Convert to km/h: (i) 30 m/s​

Answer 1

30 m/s = (30×1000 m)/1000 s

We convert the above thousand to km

30 m/s = 30 km/ 1000s

Now to covert second to hour multiply and divide by 3600.

30 m/s=(30km×3600)/(1000 ×3600s)

Covert the bottom 3600 s into 1hour

30 m/s=30km×3600/1000hrs

Now just solve the extra values(3600/1000=3.6)

30 m/s=30km×3.6/h

30 m/s=108 km/h

Which is the required result.

Answer 2

Answer:

ur answer is 180 km/h

Hope it helps you dude