Which statement is true about the ideal mechanical advantage of a third-class lever? A. It is always greater than 1. B. It is always equal to 1. C. It can be less than, greater than, or equal to 1. D. It is always less than 1.
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The answer is Option D.
The statement that is true about the ideal mechanical advantage of a third-class lever is
It is always less than 1.
Explanation:
In a Class 3 lever, the fulcrum and the load are located at either end and the force is in the center. The mechanical advantage is always less than 1 because the load covers more distance than the force when both move in the same direction. As a result, the work needs more effort to be applied for completion than it would usually require.
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(D) option is right as the mechanical advantage of class 3 lever is always less than 1.
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