Science and the history thereof. In the traditional, deterministic, "billiard ball" conception of physics there is only push - but i don't think this aside is worth focusing on currently. It's only distracting from the actual conversation at the moment. It is well worth circling back to later though!
The only response that I have is that it's still not clear where the pushing force comes from.
It principally comes from the weight of the object. Weight is an intrinsic and inexorable property of all matter. When an object weighs more than the media it displaces, this force is directed downwards. It's all pretty simple and straightforward.
As i explained before, if it helps you to conceptualize / rationalize with your arbitrary view that "pushing force must come from behind", then you may imagine the matter at the top of the object "pushing" the matter beneath it (with its own weight) which cumulatively pushes on the matter beneath that etc., until that cumulative weight/force is measured on a scale.
Let me know if you are still having trouble understanding, or need more clarification!
relative to the direction of motion
Strictly speaking, in an object at rest - there is no direction of motion. But there is a direction to the force (as forces are vectors) of weight, and it is down when the weight of the object is greater than that of the media it displaces.
By your description, it seems to come from within the object.
Weight is intrinsic to matter, yes. But like i said, it may help you to imagine an object as an aggregation of "pieces" of matter (atoms or smaller if you like) which all push upon each other to become the cumulative weight measured on a scale.
Science and the history thereof. In the traditional, deterministic, "billiard ball" conception of physics there is only push - but i don't think this aside is worth focusing on currently. It's only distracting from the actual conversation at the moment. It is well worth circling back to later though!
It principally comes from the weight of the object. Weight is an intrinsic and inexorable property of all matter. When an object weighs more than the media it displaces, this force is directed downwards. It's all pretty simple and straightforward.
As i explained before, if it helps you to conceptualize / rationalize with your arbitrary view that "pushing force must come from behind", then you may imagine the matter at the top of the object "pushing" the matter beneath it (with its own weight) which cumulatively pushes on the matter beneath that etc., until that cumulative weight/force is measured on a scale.
Let me know if you are still having trouble understanding, or need more clarification!
Strictly speaking, in an object at rest - there is no direction of motion. But there is a direction to the force (as forces are vectors) of weight, and it is down when the weight of the object is greater than that of the media it displaces.
Weight is intrinsic to matter, yes. But like i said, it may help you to imagine an object as an aggregation of "pieces" of matter (atoms or smaller if you like) which all push upon each other to become the cumulative weight measured on a scale.