Thursday, September 23, 2010

How to Do Unit Conversions (PART II)

Hello, we are back again.

Few days ago, we introduced the concept of unit conversions and showed you a simple example.

Today we are going to show you how to do complicated examples

Lets take this example.








Convert 50km/h to m/min

First, look at the question to find what needs to be converted.

You can see that the km and the h needs to be converted.

Before you make an equation, lets write out the conversions

10^3m = 1km  ;      60min = 1hr

Now lets make an equation.

50km10^3m x     1hr     =      
  1hr          1km      60min   

From here you need to cancel the units

50km10^3m x     1hr     =      
  1hr          1km      60min   

After you do multiplication:

                 50x10^3
                      60
and the result is 833.33 or 8.33x10^2m/min.

This is basically what unit conversions are about.

Written by Jk

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