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Mechanical advantage is a physical concept that refers to the relationship between the force applied and the force obtained as a result. It is used to describe how a mechanism can increase the magnitude of a force to produce a desired effect. This is accomplished by adding mechanical elements such as pulleys, levers, and sprockets to change the direction or magnitude of a force or to increase the distance an object travels. In many cases, this is done to reduce the amount of effort required to accomplish a given task.
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