why it is easy to apply a force on a pulley than lifting the object without the pulley ?
If it is due to normal force ,then why?
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Heya mate..
The pulley, a simple machine, helps to perform work by changing the direction of forces and making easier the moving of large objects. ... With this type of pulley — called a fixed pulley — pulling down on a rope makes an object rise off the ground. There are also movable pulleys and pulley systems.
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Explanation:
it is easy to apply a force on a pulley than lifting the object without the pul ley because the wheels of the pulley reduce the friction between the object and the ground.
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