Physics · Grades 8–11
Forces & equilibrium · Formula reference 2
Formula reference
Rule and assumptions
Balance moments about a pivot
Use perpendicular lever arms; neglect the beam’s own weight in this model.
F₁d₁ = F₂d₂
Further reading and review references
These are reference links, not copied exercises, institutional endorsement or proof of independent review.
Learning preview · independent educational and translation review required. Suggested grades are not official curriculum alignment.