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प्रश्न
Class III levers have mechanical advantage less than one. Why are they then used?
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उत्तर
With levers of class III, we do not get gain in force, but we get gain in speed, that is a longer displacement of load is obtained by a smaller displacement of effort.
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संबंधित प्रश्न
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Name the class of the lever shown in the picture below:
