Why whenever you drop something out of a car, it falls behind you but when you drop something inside a car, it falls straight down?

Question

Why whenever you drop something out of a car, it falls behind you but when you drop something inside a car, it falls straight down?

In: Physics

Answer 1

It should fall straight down relative to the car, ie keep going forward at the car’s speed while it falls. But outside of the car that forward velocity is slowed by air resistance so it quickly reverts to moving relative to the ground while you keep going forward, leaving it behind.