Question

How to covert 50 m/s into km/h

Answer 1

50 m/s

1km=1000m

1 hour=3600 sec

multiplying by 1000 on numerator and denominator

50*1000m/1000 sec

=50 km/1000 sec

multiplying by 3600 on numerator and denominator

50*3600 km/1000*3600 sec

=50*3600/1000 hr

=180 km/ hr

Hope this helps