double pulley system![click to hear](/images/speaker.jpg)
System consisting of two pulleys with a rope running around them to lift a load. Using two or more pulleys reduces the amount of effort needed.
load ![click to hear](/images/speaker.jpg)
Weight whose inertia exerts a force opposite to the force exerted on the rope.
pulley ![click to hear](/images/speaker.jpg)
Device with a grooved wheel (sheave wheel) around which a rope passes to transmit the effort exerted on the load.
rope ![click to hear](/images/speaker.jpg)
Cord that slides on the pulley and is pulled to lift the load.
effort ![click to hear](/images/speaker.jpg)
Force exerted on the pulley’s rope to lift the load.