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double pulley systemclick to hear

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.
double pulley system load pulley rope effort

load click to hear

Weight whose inertia exerts a force opposite to the force exerted on the rope.

pulley click to hear

Device with a grooved wheel (sheave wheel) around which a rope passes to transmit the effort exerted on the load.

rope click to hear

Cord that slides on the pulley and is pulled to lift the load.

effort click to hear

Force exerted on the pulley’s rope to lift the load.