How do I simulate a zip line?

Open this page and use the live Fluid Statics Kit tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.

Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.

Can I use my own numbers?

Absolutely — every input is adjustable, and with data import you can drive a zip line from your own measurements.

Use case · powered by Fluid Statics Kit

Fluid Statics Kit for a zip line

Simulate a zip line live in your browser. This runs the real Fluid Statics Kit solver — adjust the inputs, watch it respond instantly, and export the result. No install, no account.

For:Students Researchers Educators Engineers Hobbyists & Makers K-12 Students First Responders

Buoyancy

open full solver →

Buoyancy & ArchimedesLive

floating equilibrium by density

Controls

An object floats with exactly the fraction ρ_object/ρ_fluid submerged. Denser than the fluid? It sinks. This is Archimedes' principle, live.

Presets

Object density (kg/m³)

Fluid density (kg/m³)

Object size

▶ Run in Python

Data Inspector

Fraction submerged60%

Statefloats

ρ ratio0.60

Governing equation

\frac{V _{s u b}}{V} = \frac{ρ _{o bj}}{ρ _{f l u i d}} = \frac{600}{1000} = 0.60 F_{b} = ρ_{f l u i d} g V

Reading this result: Lighter than the fluid (ρ ratio 0.60), so it floats with exactly 60% submerged — the submerged fraction equals the density ratio, and object size never changes it.

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

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About this simulation

The full Fluid Statics Kit tool models a zip line with the same numerics engineers and scientists use — running entirely client-side. Change any parameter and the result updates in real time, so you can build intuition, check a design, or teach the concept without spreadsheets or installs.

More you can do with Fluid Statics Kit

Fluid Statics Kit for a projectile from a cannon Fluid Statics Kit for a bouncing ball Fluid Statics Kit for a pendulum clock Fluid Statics Kit for a car braking Fluid Statics Kit for a roller-coaster loop Fluid Statics Kit for a satellite orbit Fluid Statics Kit for a mass on a spring Fluid Statics Kit for a skydiver's free fall

Other ways to simulate a zip line

Particle / N-Body for a zip line Heat & Wave Fields for a zip line GPU Compute (WebGPU) for a zip line WebGPU Fluid for a zip line GPU N-Body for a zip line GPU PDE Solver for a zip line

Frequently asked questions

How do I simulate a zip line?: Open this page and use the live Fluid Statics Kit tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.
Is it free?: Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.
Can I use my own numbers?: Absolutely — every input is adjustable, and with data import you can drive a zip line from your own measurements.