The square root of a kilometer?

This video is about dimensional analysis, and it reveals a
peculiar circumstance in which it actually makes sense for
the units of a physical quantity to include the square
root of a kilometer.
https://www.youtube.com/watch?v=kkfIXUjkYqE
--
David Canzi
"In Dr. Johnson's famous dictionary patriotism is defined as the
last resort of a scoundrel. With all due respect to an enlightened
but inferior lexicographer I beg to submit it is the first."
Ambrose Bierce, _The Devil's Dictionary_