Pulleys with Many Wire - JavaLab

Pulleys with Many Wire

Movable Pulley

Movable pulleys can move axes, unlike fixed pulleys.
Movable pulleys have the advantage of being able to move with less force.
But, the distance that I have to move is longer than the fixed pulley.
So, there is no benefit of energy.
A movable pulley is used with a fixed pulley because it is difficult to move by itself.