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i need help doing an essay about levers

Sagot :

A lever is a machine consisting of a beam or rigid rod pivoted at a fixed hinge, or fulcrum. It is one of the six simple machines identified by Renaissance scientists. The word comes from the French lever, "to raise", cf. a levant. A lever amplifies an input force to provide a greater output force, which is said to provide leverage. The ratio of the output force to the input force is the mechanical advantage of the lever.
alexandra31
A lever is a machine. The machine is a sipmle machine you can use and its not so difficult if you ask me.
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