Marketplace
The examples from Ordinate 2D, and scenes, parts, materials and scripts made by its users. All free: open one in the studio with one click.
From Ordinate 2D ✓
Script
Energy audit of the open scene
Open any scene, then run it: kinetic and potential energy of every moving body, their sum, and how much was lost.
Script
Trebuchet: where the energy goes, where the ball lands
A 60 kg counterweight swings a beam; the script opens the sling's pouch when the ball flies 40° up: the ball's share of the counterweight's energy, and its landing point against the projectile formula.
Script
Bungee jump by energy
A cord that is slack, then a spring: the script's force gives the lowest point the energy method predicts.
Chain Reaction
Dominoes knock a ball down a ramp, the ball swings a hammer, the hammer rings a bell. The graph follows the energy from stage to stage.
The Fastest Slope: Brachistochrone
A straight track, a circular arc and a cycloid from the same start to the same end. The straight one is shortest; the cycloid is fastest: 1.00 s against 1.19 s.
Leaving the Dome
A block slides off the top of a smooth dome. The normal force m g cos θ − m v²/R falls to zero at cos θ = ⅔: it always leaves at two thirds of the height.
Orbits: a Planet and a Comet
A fixed sun, a planet on a circular orbit and a comet that starts too slowly and falls in on an ellipse: r v and ½v² − GM/r stay constant for each.
Ballistic Pendulum
A 0.5 kg bullet at 30 m/s embeds in a 4 kg block on a rod: v = mu/(M+m) after the impact, then the swing rises h = v²/2g.
Chain Reaction
Dominoes knock a ball down a ramp, the ball swings a hammer, the hammer rings a bell. The graph follows the energy from stage to stage.
The Fastest Slope: Brachistochrone
A straight track, a circular arc and a cycloid from the same start to the same end. The straight one is shortest; the cycloid is fastest: 1.00 s against 1.19 s.
Leaving the Dome
A block slides off the top of a smooth dome. The normal force m g cos θ − m v²/R falls to zero at cos θ = ⅔: it always leaves at two thirds of the height.
Orbits: a Planet and a Comet
A fixed sun, a planet on a circular orbit and a comet that starts too slowly and falls in on an ellipse: r v and ½v² − GM/r stay constant for each.
Ballistic Pendulum
A 0.5 kg bullet at 30 m/s embeds in a 4 kg block on a rod: v = mu/(M+m) after the impact, then the swing rises h = v²/2g.
From the community
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