# How to read a specific type of dimensional analysis

1. May 21, 2012

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

In some work I have been following, I keep seeing notation like:

for energy .... $$ML^2 T^{-2}$$

How is this supposed to be read? I understand this is using mass, length and time, but what is it saying? Would I be right in thinking it says

''mass times length squared divided by time squared?''

As soon as I understand that, I think I will understand how to read this kind of notation

2. May 21, 2012

### tiny-tim

exactly!

(and that tells you that in SI units it will be in kg m2 s-2, ie J)

3. May 21, 2012

Thank you very much!