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
Moment of inertia from rolling times
A disc, a thick ring, a thin hoop and a sliding block race down equal slopes; k = g sin θ t²/2L − 1 gives each one's I/mr².
Script
A gas in a box: pressure from collisions
Forty atoms bounce in a closed box; the wall's pressure against N⟨KE⟩/A.
The Yo-Yo
A disc falls as its string unwinds: a = g/(1 + I/mR²) = ⅔ g, and the string holds a third of its weight, until the string runs out. A box beside it falls at g.
Slipping, then Rolling
A disc and a hoop are thrown along the floor without spinning: both slide at first, friction slows the centre and spins the body up until v = ωR, then both roll steadily at v₀/(1 + k): ⅔ v₀ for the disc, a little over half for the hoop.
Tossed Hammer: Centre of Mass
A handle welded to a heavy head is tossed with a spin: it tumbles, but its centre of mass follows the parabola of a thrown point mass.
Flywheel with Bearing Friction
A hexagonal flywheel spun at 12 rad/s against a dry-friction bearing: a constant torque slows it linearly, ω = ω₀ − τt/I.
Rolling Race: Slider, Discs and a Hoop
Four ramps: with no friction nothing spins and the slider wins at g sin θ; a disc turns I = ½mr² and runs at g sin θ / 1.5, small or big, light or heavy; a hoop (a ring, I = ½m(R² + r²), nearly mr²) comes last at g sin θ / 1.9.
Vertical Circle
A ball swung in a vertical circle: the rod pulls hardest at the bottom (mg + mv²/r) and least at the top, while the energy stays constant.
The Yo-Yo
A disc falls as its string unwinds: a = g/(1 + I/mR²) = ⅔ g, and the string holds a third of its weight, until the string runs out. A box beside it falls at g.
Slipping, then Rolling
A disc and a hoop are thrown along the floor without spinning: both slide at first, friction slows the centre and spins the body up until v = ωR, then both roll steadily at v₀/(1 + k): ⅔ v₀ for the disc, a little over half for the hoop.
Tossed Hammer: Centre of Mass
A handle welded to a heavy head is tossed with a spin: it tumbles, but its centre of mass follows the parabola of a thrown point mass.
Flywheel with Bearing Friction
A hexagonal flywheel spun at 12 rad/s against a dry-friction bearing: a constant torque slows it linearly, ω = ω₀ − τt/I.
Rolling Race: Slider, Discs and a Hoop
Four ramps: with no friction nothing spins and the slider wins at g sin θ; a disc turns I = ½mr² and runs at g sin θ / 1.5, small or big, light or heavy; a hoop (a ring, I = ½m(R² + r²), nearly mr²) comes last at g sin θ / 1.9.
Vertical Circle
A ball swung in a vertical circle: the rod pulls hardest at the bottom (mg + mv²/r) and least at the top, while the energy stays constant.
From the community
Nothing here yet that matches. Publish your own from the studio: My Assets → Publish.