This is the Law of Conservation of Energy. If a hoist gives you a mechanical advantage of 4 (you use 1/4th the force), you must pull the rope 4 times the distance you want to lift the object.
Fíjate bien, las que están ancladas al techo no cuentan como "n" en la fórmula del polipasto. This is the Law of Conservation of Energy
cap F equals the fraction with numerator 600 space N and denominator 2 center dot 3 end-fraction equals 100 space N Note: If using only 1 mobile pulley, the force would be 4. Study Resources cap F equals the fraction with numerator 600
| Sistema | Fórmula (Fuerza aplicada) | Desplazamiento cuerda | | :--- | :--- | :--- | | | ( F = R ) | ( d = h ) | | Polea Móvil | ( F = R/2 ) | ( d = 2h ) | | Polipasto 2 móviles | ( F = R/4 ) | ( d = 4h ) | | Polipasto 3 móviles | ( F = R/8 ) | ( d = 8h ) | This is the Law of Conservation of Energy