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Planet Impact Simulator (2D)

A 2D cross-section impact-physics lab: impactor diameter, velocity, angle and composition drive a real kinetic-energy and crater-scaling calculation against Earth, Mars or Venus, with a side-view trajectory, crater formation and ejecta.

Physics & Mechanics2DModerate60 FPS📱 Mobile-adapted⇄ 3D version

Details

CategoryPhysics & Mechanics

RenderingCanvas 2D

DifficultyModerate

Target FPS60

ControlsPick a target planet and impactor composition, drag the diameter, velocity and angle sliders to set up the scenario, then press Launch to fly the impactor in and watch the crater, flash and ejecta form; Reset clears the scene.

planetary impactcrater scalingkinetic energycollision dynamicstrajectory2d

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This 2D companion runs the same kinetic-energy and crater-scaling formulas as the 3D original — impactor diameter, velocity, impact angle and composition against a chosen planet's radius and density — through a flat cross-section view instead of an orbiting camera: the impactor arcs in along a straight trajectory, strikes the surface, and the crater, flash and ejecta on screen are sized directly from the computed energy and crater diameter rather than an animation guess.

⚙ Under the hood

Impact energy from E=½mv², crater diameter from a pi-group scaling law (grows with size, speed and impact angle; shrinks against a denser target), rendered as a 2D side-view trajectory, crater and ejecta.

planetary impactcrater scalingkinetic energycollision dynamicstrajectory2d

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install