PPolySim OS
Use case · powered by Rolling Without Slipping

Rolling Without Slipping for a bungee jump

Simulate a bungee jump live in your browser. This runs the real Rolling Without Slipping solver — adjust the inputs, watch it respond instantly, and export the result. No install, no account.

Rolling Without SlippingLive

Controls

Presets

All these shapes share the same mass and radius, yet a solid sphere beats a hoop every time. Acceleration = g·sinθ / (1 + I/mR²): mass concentrated near the axis (small I) accelerates faster — and the result is independent of mass and radius.

▶ Run in Python

Data Inspector

Hoop accel1.12 m/s²
Disk accel2.24 m/s²
Sphere accel2.40 m/s²
Shell accel2.01 m/s²

Governing equation

Reading this result: At 20° the solid sphere leads at 2.40 m/s² while the hoop trails at 1.12 m/s² — a 2.14× gap fixed entirely by mass distribution, independent of the incline and of every shape mass and radius.

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

or unlock everything with Pro →

About this simulation

The full Rolling Without Slipping tool models a bungee jump 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 Rolling Without Slipping

Other ways to simulate a bungee jump

Frequently asked questions

How do I simulate a bungee jump?
Open this page and use the live Rolling Without Slipping 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 bungee jump from your own measurements.