ELI5, why if you jump inside a moving train you will land on the same spot, but if you jump on the roof of a moving train, you land on a different spot?

Question

seen it on twitter and I can’t get my head around it
EDIT: thanks guys I get it now 😅

In: Physics

Answer 1

Ideally, both scenarios will result in you landing on the same spot. This is due the fact that when you jump, you are still moving at the same speed as the train. The difference when you’re on top of the train is that air resistance will drag you down and you’ll land short.