Moving Vehicle + Physics?

S

Stjimmy

New member
I was wondering how physics works with objects floating in moving cars. As in, a fly enters the car and we drive away. If its flying in the car, since the car is moving around the earth and we are on top of it being pulled, the fly has no physical attachment to the car, so why doesn't it fly into the back window?

Same goes for i throw a ball in the air, why doesn't it fly backwards?
 
Earth has an atmosphere. We are moving in it . The air inside the car moves along with the car and the fly also moves with the same speed as the car in addition to its zigzag movements. I think the fly is "attached" to the air inside the car !!
The same holds for the ball thrown up. It already has a horizontal velocity equal to that of the car
 
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