The mechanical advantage of the lever is 4.8
Mechanical advantage is a measure of the ratio of output force (load) to input force (effort applied) in a system, used to analyze the forces in simple machines like levers and pulleys. 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 has no unit.
Therefore mechanical advantage is given as Load/Effort
In this case the load is 120N and the effort is 25N
Therefore the mechanical advantage of the lever = 120/25= 4.8N
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