Lever balance condition
Required: effort × effort arm = load × load arm.
Simple machines (junior)Levers, pulleys, and mechanical efficiency.
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Lever balance condition
Lever balance: effort × effort arm equals load × load arm. Net torque tilts the bar.
Lever balance: effort × effort arm = load × load arm.
Key formulas
F_1L_1=F_2L_2\tau_\text{net}=F_2L_2-F_1L_1
How to use
- Tune forces and arm lengths on both sides.
- Watch tilt direction and net torque.
- Balance when F₁L₁ ≈ F₂L₂.
Applications
- Lever balance condition: Lever balance: effort × effort arm = load × load arm.
- In class, tune parameters for “Lever balance condition”, then check against the textbook result.
FAQ
How do I reduce effort?
Increase the effort arm or decrease the load arm.
What does MVP mean on this page?
An interactive sketch with formulas and parameters. Polished Ready labs are the full bench experience.
What does the “Lever balance condition” lab practice?
Tune parameters and match readouts to the “Lever balance condition” relations — useful for prep and demos.
Self-study or classroom?
Both — tune alone, or project “what if…?” demos in class.