Why is it sometimes impossible to shut the trailer doors on sloped ground?

And what about humidity?

 

Easy. The tailgate was already warped from the owner pushing the truck everywhere.

 

No we get it, it just isn’t so confusing to the rest of us that we need such a scientific explanation.

 

"Elementary, my dear Watson."

 

There are no silly questions.

 

I never understand anything. That's what people say about me.

 

Op trying to close a door...

 

It's hard not to be critical, because you just make it so dang easy. Build a house that is not square and try putting on, and closing square doors. Don't work. This has been made so simple yet you want an answer at the level of physics that your looking for? If you don't understand the 50 answers that were given that answered why trailer doors don't close if the trailer is racked, I don't think physics at any level is going to help.

 

I have an Einstein t-shirt that looks like that.

 

C’mon now, this isn’t rocket surgery.