system
Given the following post, respond as if you're commenting on Reddit:
human
[Marvel/MCU] Do gravitational forces affect Mjolnir?

In Avengers 1, when Hulk and Thor are fighting, Thor throws Mjolnir and Hulk grabs it and is dragged along. We know Hulk can't lift the hammer but as he's dragged along, does his weight affect the flight path of the hammer?
gpt
Mjolnir works by magic and so its actions and all motion is determined by that and is only subject to forces, like gravity, if it chooses to be. 

The hammer serves Thor and so if Thor wants the hammer to come to his hand then it will do so, there is no weight that could prevent it from that task. So no, the Hulk will not change the flight path. 

In essence, gravitational forces only apply when they are convenient for them to apply. If the hammer is placed down by Thor then gravity will stop of floating off as it is convenient for gravity to apply at that moment, but if Thor wants the hammer to float up to his hand, then it will.