Answer:
this question doesn't make any sense. where are the different parts that we're trying to match up?
Well you know sometimes you see a lot of small bridges that will have weight limit signs. I believe this is really for safety precautions. Keyword: SMALL bridge -
Due to some bridges being small, the materials and strength of the bridge may not can withstand a certain weight. The contents of the vehicle, axels, and wheels, all add to that weight. So there is a very good reason for that to matter.
I hope my somewhat, tied together answer provides just the information you need!
~Brooke❤️
A scientific law would be your answer.
There are many laws that are defined using formulas.
I hope this helps!
~cupcake