Concept explainers
The distance by which the end of the lever should be moved to have the efficiency of
Answer to Problem 29PP
Explanation of Solution
Given:
The force exerted on a lever,
The weight of the rock,
The distance by which the rock is raised,
The efficiency,
Formula used:
The efficiency of a machine is the ratio of real and idea mechanical advantages,
Where
Calculation:
Using the given values in above formula, the distance by which the end of the lever (
Conclusion:
Thus, the distance by which the end of the lever (
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