@user_missinng on Instagram: "The video shows a hands-on experiment with three strings attached to pulleys and weights, forming a force triangle that balances under tension, visually confirming Lami's theorem for concurrent forces in equilibrium where each force magnitude equals the sine of the opposite angle times a constant. Titled as a Pythagorean theorem demonstration, the setup actually explores general vector resolution rather than the specific right-triangle relation a2+b2=c2a^2 + b^2 = c

4.2: Resolution of a Force into a Force and a Couple