What is pulley in physics and types of pulley?
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a wheel with the groove rimm around which a chord passes which acts to change the direction of the force applied to the cord and is used to raise heavy weights .three types of pulley fixed ,movable and compound.
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A pulley is a mechanical device that can be used to lift heavily objects more easily. Pulleys consist of a wheel that rotates on an axle—which is a rod through the center of the wheel—and a rope, cable, or chain. There are three main types of pulleys:fixed,movable, and compound.
A fixed pulley’s wheel and axle stay in one place. A good example of a fixed pulley is a flag pole: When you pull down on the rope, the direction of force is redirected by the pulley, and you raise the flag.
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A fixed pulley’s wheel and axle stay in one place. A good example of a fixed pulley is a flag pole: When you pull down on the rope, the direction of force is redirected by the pulley, and you raise the flag.
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