Earth vs Space: Is a Falling Ball PULL or PUSH?

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Discussion Overview

The discussion revolves around the nature of the forces acting on a falling ball, specifically whether the Earth is pulling the ball or if space is pushing it. Participants explore various interpretations of this phenomenon, touching on concepts from classical physics and general relativity.

Discussion Character

  • Debate/contested
  • Conceptual clarification
  • Exploratory

Main Points Raised

  • Some participants propose that the Earth is pulling the ball towards it due to gravitational attraction.
  • Others argue that in a vacuum, the ball is in free motion and that air resistance in the atmosphere pushes the ball upward, slowing its fall.
  • A participant mentions that in general relativity, neither pulling nor pushing is accurate, as mass alters the geometry of space-time, causing the ball to follow a curved path.
  • Another viewpoint suggests that both pulling and pushing could be valid interpretations, depending on how one defines the forces at play, and that theories can be adjusted to explain the interaction between the Earth and the ball.
  • One participant notes that the interpretation of "actually" can vary, indicating that physics can model the situation in multiple ways.

Areas of Agreement / Disagreement

Participants express multiple competing views on the nature of the forces involved in a falling ball, and the discussion remains unresolved with no consensus reached.

Contextual Notes

Definitions of terms such as "pull" and "push" are not uniformly agreed upon, and the discussion reflects varying interpretations of gravitational interactions and the role of space-time geometry.

Deepak K Kapur
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When a ball falls towards Earth, what is actually happenning...

Is the Earth PULLING the ball?
or
Is the space PUSHING the ball?

(Be assured that I can understand you. Before becoming a teacher of literature, I studied Physics, Chemistry and Mathematics upto graduation level. The previous thread was an attempt to find 'some reason in madness')
 
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Neither. In a vacuum, the ball is in free motion. If in the atmosphere, air is pushing it upward (slowing down its fall).
 
Deepak K Kapur said:
When a ball falls towards Earth, what is actually happenning...

Is the Earth PULLING the ball?
or
Is the space PUSHING the ball?
In general relativity, neither. The presence of mass changes the geometry of space-time so that the "natural" direction of travel is not a straight line but a curve.
Deepak K Kapur said:
(Be assured that I can understand you. Before becoming a teacher of literature, I studied Physics, Chemistry and Mathematics upto graduation level. The previous thread was an attempt to find 'some reason in madness')
Having skimmed your previous thread, I suspect that you will need to study a lot of maths to follow any answer much more in-depth than either mine or wabbit's.
 
You could say both, or anyone. But since we need to reason it out, we bring out a theory to explain force acting between two bodies due to their mass...and say that the Earth and the ball attract each other...We could even tweak the theory in some places and say that the space is pushing those two bodies toward each other.
 
Deepak K Kapur said:
When a ball falls towards Earth, what is actually happenning...

Depends on the definition of "actually". Physics can model this in different ways:

 
Thanks everybody.
 

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