1. The problem statement, all variables and given/known data This isn't homework, just pursuing some physics on my own and curious. 2. Relevant equations So I've got 2 questions which have been sorta bothering me. 1-When I throw something into the air, does it stop for a tiny time at each molecule it meets (Newtons third law) during which the molecule moves away and the object keeps moving? 2- In regards to gravity, If I just spin a wire with a ball connected to the edge and spin it there's a force acting perpendicular to the speed vector, isn't that the same on earth (I realize it's more complicated due to many things, like not having a wire connected to us..) but in general isn't it the same thing (asking this since heard it's unknown where gravity comes from). 3. The attempt at a solution Those are my "solutions" look to verify and get better!