ELi5: Why is it that if you are in a moving train and jump, you stay in the same spot, but if you stand on top of a moving train and jump, you do not?
In: 3
inside the train the air that surrounds you is also moving at the speed of the train. Outside the train the air is sitting relatively still, so whatever speed the train moves forward a simulated wind pushes force on you in the opposite direction causing your airborn body to slow down and maybe even veer off from the train beneath.
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