Explain the uses of pulley and blade .
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Function of Pulley
A pulley is a wheel that carries a flexible rope, cord, cable, chain, or belt on its rim. Pulleys are used singly or in combination to transmit energy and motion. Pulleys with grooved rims are called sheaves.
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Pulley
Pulley is a simple machine which is used to pull a thing up.
Blade
A blade is used to cut things.
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