Home▸Physics & Mechanics▸3D Elastic Pendulum: Spring-Mass System

🌀 3D Elastic Pendulum: Spring-Mass System

3D companion to the 2D spring-mass simulator: the same Hooke's-law spring, gravity, linear drag and oscillating wind force with semi-implicit Euler integration, now a coil spring swinging a ball in a full 3D box. Drag the ball in 3D, orbit the scene and watch kinetic, spring and gravitational energy trade places.

Physics & Mechanics3DEasy60 FPS📱 Mobile-adapted⇄ 2D version

Details

CategoryPhysics & Mechanics

RenderingThree.js · WebGL

DifficultyEasy

Target FPS60

ControlsDrag the ball with the mouse or finger to pull it in 3D, drag empty space to orbit, scroll to zoom; sliders for mass, gravity, drag, spring constant, rest length, wind force and time scale; presets (resonance, storm, zero gravity, moon), Pause, Step, Reset, Kick and Side kick buttons; trail, vector and auto-orbit toggles; live speed, spring length and force, kinetic, potential and total energy readout with an energy history graph.

spring-masselastic pendulumhooke's lawoscillationresonancewebgl3d-simulation

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⚙ Under the hood

spring-masselastic pendulumhooke's lawoscillationresonancewebgl3d-simulation

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install