A pulley makes work easier by reducing the amount of force required to lift an object. When a pulley system is used to lift an object, the weight of the object is distributed between multiple ropes or cables running through the pulley system. This allows the person pulling on the rope to only have to exert a fraction of the force that would be required to lift the object directly.
Additionally, pulleys also change the direction of the force that is applied. When a force is applied downwards on one end of the rope, the object is lifted upwards. This change in direction allows for more efficient use of the force being exerted, making it easier to lift heavy objects.
Overall, pulleys increase the mechanical advantage of lifting an object by distributing the weight and changing the direction of the force applied, making it easier for the person lifting the object.
How does a pulley make work easier when it is used to lift an object
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