A ramp is a device commonly used to aid in

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A ramp is a device commonly used to aid in lifting. The ramp is an inclined plane. The work output of an inclined plane is the work that would have to be done to lift the load directly. The work input is the actual force exerted in pushing the load up the ramp times the length of the ramp. An ideal mechanical advantage of an inclined plane is equal to its length divided by its height.

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