Question on: JSS2 Basic technology - Simple Machines
Explain how a pulley system works and its advantages.
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A pulley system consists of a wheel with a grooved rim and a rope or cable that runs along the groove. When you pull on one end of the rope, the wheel turns, allowing you to lift a load on the other end. Pulleys can change the direction of a force, making it easier to lift heavy objects. Movable pulleys can also reduce the amount of force needed by distributing the weight of the load across multiple ropes. This makes them very useful in construction, elevators, and various lifting mechanisms.
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