2.5 Gravitational Attraction - The Nature of Code

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Published on ● Video Link: https://www.youtube.com/watch?v=EpgB3cNhKPM


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In this video, I demonstrate how to apply Newton’s Law of Universal Gravitation in p5.js using vectors and forces. Code: https://thecodingtrain.com/tracks/the-nature-of-code-2/noc/2-forces/5-gravitational-attraction

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p5.js Web Editor Sketches:
πŸ•ΉοΈ Gravitational Attraction: https://editor.p5js.org/codingtrain/sketches/MkLraatd
πŸ•ΉοΈ Attraction Exercise: https://editor.p5js.org/codingtrain/sketches/ImehzZuCU

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References:
πŸ”— Newton's law of universal gravitation: https://en.wikipedia.org/wiki/Newton's_law_of_universal_gravitation
πŸ”— 2.9 Gravitational Attraction: https://natureofcode.com/book/chapter-2-forces/#29-gravitational-attraction

Videos:
πŸŽ₯ Acceleration Vector: https://youtu.be/T84AWnntxZA
πŸŽ₯ Attraction and Repulsion Forces: https://youtu.be/OAcXnzRNiCY

Timestamps:
0:00 It's time for gravitational attraction!
1:17 Diagram the mover and attractor
1:43 Formula for gravitational attraction
3:51 Add an attractor
5:00 Add an attractor class
7:06 Revisit the diagram
7:52 Add an attract function
10:46 Role of distance squared
11:52 Constrain the range of distance squared
12:33 Give mover an inital velocity
13:25 Give the background some alpha
13:44 Add an array of mover objects
15:12 Possible variations

Editing by Mathieu Blanchette
Animations by Jason Heglund
Music from Epidemic Sound

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#forbeginners #javascript #p5js



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