Angular Momentum
This interactive simulator explores Angular Momentum in Classical Mechanics. Two masses on a rod: I = 2mr², change r or m and watch ω adjust to keep L constant. Use the controls to change the scenario; watch the visualization and any graphs or readouts to connect the model with lectures, labs, and homework.
Who it's for: Best once you already know the basic definitions and want to build intuition. Typical context: Classical Mechanics.
Key terms
- angular
- momentum
- angular momentum
- mechanics
- classical
Live graphs
How it works
For rotation about a fixed axis through the center, with no net external torque, the angular momentum L = Iω stays constant. If you redistribute mass closer to the axis (smaller r), the moment of inertia I = 2mr² drops, so ω must increase to keep the same L — the classic figure-skater effect.
Key equations
More from Classical Mechanics
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Wall Bounce
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Oblique Wall Impact
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Rutherford Scattering
Repulsive 1/r² orbit sketch vs impact parameter and energy.