Is it easier to lift a weight with a large or small pulley?

March 15, 2017 | Author: | Posted in Science

Other things being equal, a weight can be lifted more easily with a large pulley than with a small one. Less power is required to drive or pull a vehicle with large wheels than is required to drive or pull one with small wheels. The larger the wheel, the greater the mechanical advantage in overcoming friction. If friction could be eliminated there would be no mechanical advantage gained by using a larger wheel.

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