Dimensional Analysis Made Easy. DESN 100. Christine Griffith Spring 2009. So what is dimensional analysis?. Dimensional analysis is the process used by scientists, mathematicians, engineers to change from one unit of measure to another. An example problem.
Notice that the original units of miles per hour are multiplied by fractions that are equal to 1.
1 hour = 60 minutes
1 minute = 60 seconds
Hour on top cancels with hour on the bottom
Minute on top cancels with minute on the bottom
Miles on top cancels with mile on the bottom
Now notice that the cancelled units turned into 1’s
The 60’s also cancel