Concept explainers
What is the theoretical mechanical advantage for each of the three lever systems shown?
Theoretical mechanical advantage for each of the three lever systems.
Answer to Problem 48A
The theoretical mechanical advantage for each of the three lever systems 1, 2 and 0.5.
Explanation of Solution
Given:
The three lever systems are shown below.
Formula Used:
Mechanical Advantage = Effort arm / Load arm
Calculation:
Consider the length of benchas
For the first lever system, both load and the effort applied is at
Thus,
MA = Effort arm / Load arm
Similarly, for the second lever system, Load is at
Thus,
MA = Effort arm / Load arm
For the third lever system, Load is at
Thus,
MA = Effort arm / Load arm
Conclusion:
Hence, the theoretical mechanical advantage for the three lever systems is
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