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What is the formal definition of force field? Which is more fundamental force or field? Do field exist in nature  (as force do i think as per section 12-1 of Feynman lecture volume 1, and page 8,9 of Keith Symon classical mechanics) or is it a mathematical definition? Why do field (take gravitational field for example), need time to propagate  ,what what is it formally?

What is the formal definition of force field? Which is more fundamental force or field? Do field exist in nature(as force do i think as per section 12-1 of Feynman lecture volume 1, and page 8,9 of Keith Symon classical mechanics) or is it a mathematical definition? Why do field (take gravitational field for example), need time to propagate  ,what is it formally?

What is the formal definition of force field? Which is more fundamental force or field? Do field exist in nature  (as force do i think as per section 12-1 of Feynman lecture volume 1, and page 8,9 of Keith Symon classical mechanics) or is it a mathematical definition? Why do field (take gravitational field for example), need time to propagate, what is it formally?

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Is there any special significance of force field in physics?

What is the formal definition of force field? Which is more fundamental force or field? Do field exist in nature(as force do i think as per section 12-1 of Feynman lecture volume 1, and page 8,9 of Keith Symon classical mechanics) or is it a mathematical definition? Why do field (take gravitational field for example), need time to propagate ,what is it formally?