A lorry is travelling at 13.5 m/s along a stretch of road where the speed limit is 50 km/h.


1 kilometre = 1000metres 


1 hour = 3600 seconds

show that the lorry is travelling below the speed limit.

 Jan 2, 2018

13.5 m/s

It will do a lot more than that in an hour!


13.5*3600 m/h


It will do a lot less km than metres in an hour


13.5*3600 / 1000  km/hour    =   48.6km/hour


That is definitely less than 50km/h 

 Jan 2, 2018

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