Question

How do I convert 20m/s to km/h?

Answer 1

Answer:

72 km/hr

Explanation:

20 m into km = 20/1000 km

20 sec into hr = 20*60*60 hr

(20*60*60/1000) km/hr = (72000/1000) km/hr

72 km/hr

Answer 2

Given -20m/s

What to solve -To convert m/s into km/hr.

Solution-( 20×18)/5 =72km/hr.

Steps÷

1 - We know m/s second is cgs unit of speed .So,we have to convert in SI unit of speed which is km/hr.

2-Rather than first converting m into km and second into hour.

3- We directly multiply whole cgs value which is 20 with 18 i.e 20×18 =360 and then divide whole term by 5 i.e 360÷5=72.

So,the answer will be 72 km/hr .