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MVP — interactive sketch; a fuller lab is coming later.

Two-force equilibrium

Equal, opposite, collinear forces on the same body.

Force & motion (junior)Force measurement, gravity, balance, friction, Newton I.

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Two-force equilibrium

Two-force balance: equal, opposite, collinear, same body. This “Two-force equilibrium” page is an MVP interactive sketch — formulas, controls, and live readouts in the browser; a fuller bench may follow.

Two-force balance: equal, opposite, collinear, same body.

Key formulas

  • \vec{F}_1+\vec{F}_2=0

How to use

  1. Adjust parameters in the left panel.
  2. Use play / pause and speed controls.
  3. Match right-side readouts to the formulas.
  4. Reset to return to the initial state.

Applications

  • Two-force equilibrium: Two-force balance: equal, opposite, collinear, same body.
  • In class, tune parameters for “Two-force equilibrium”, then check against the textbook result.

FAQ

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 “Two-force equilibrium” lab practice?

Tune parameters and match readouts to the “Two-force equilibrium” relations — useful for prep and demos.

Is force always along velocity?

No. Net force aligns with acceleration; velocity can point elsewhere.

How do graphs show uniform vs accelerated motion?

Uniform: constant x–t slope. Constant a: straight v–t with slope a.

Try the lab