3 km/h= m/s?

3 Answers
Feb 16, 2018

#0.833# m/s

Explanation:

First you need to understand what #3# km per hour means.

In #1# hour the distance covered is #3#km

However, we want to change to metres.

Knowing that #1# km = #1000# m gives us:

In #1# hour the distance covered is #3#km
In #1# hour the distance covered is #3000" "larr xx1000#

In #1# minute you will cover#1/60# of the distance in an hour

In #1# second you will cover #1/60# of the distance in a minute.

#3 "km/hour" = (3xx1000)/(60xx60)"m/s "(larr xx 1000)/(larr div 3600)#

#= 0.833#m/s

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To convert from m/s to km/h you will do exactly the opposite:

m/s to km/h#" "rarr xx3600/1000 = xx3.6#

km/h to m/s#" "rarr xx 1000/3600 = div3.6#

You can easily learn these short cut calculations.
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Feb 22, 2018

3km/h => 3000m/h

i.e. #3000 -: (60 * 60)#m/s

=> #(3000-:3600)#m/s

or, #(5-:6)#m/s

i.e. 0.83333m/s

:)>