![]() ![]() This can be applied to many physical situations with rigid bodies, and can be used to analyze the force advantage gained in using various tools. Typically the mechanical advantage is expressed in ideal terms, where there is no losses in energy between the input and output times, also known as 100% efficient systems.į_ Despite changing the forces that are applied the conservation of energy is still true and the output energy is still equal to the input energy. Mechanical advantage is a measure of the ratio of output force to input force in a system, used to analyze the forces in simple machines like levers and pulleys. Mechanical advantages allows humans to perform tasks much easier in terms of the force they need to apply, but must always obey the conservation of energy. Figure 1: Types of simple machines and their corresponding mechanical advantages.
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