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Mechanical advantage - Wikipedia, the free encyclopedia (917 words) |
 | In physics and engineering, mechanical advantage (MA) is the factor by which a machine multiplies the force put into it. |
| This allows even simple wheels with wooden axles running in wooden blocks to still turn freely, because their friction is overwhelmed by the rotational force of the wheel multiplied by the mechanical advantage. |
| In this way, it differs from the ideal mechanical advantage, which is a sort of 'theoretical limit' to the efficiency. |
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