Question

Suppose a pulley with an IMA of 2 was used with an input force of 50 N to lift a box 45 cm that weighs 100 N. What distance was the rope pulled?

Answer 1

The ideal mechanical advantage (IMA) is the number of times in which the input force is multiplied under ideal conditions. If the real force was only 50N, the distance at which the rope was pulled will be twice the distance given in this item. The answer is 90 cm.