题目
2025FA-HES-207-001 E. Assignment- Torque & Levers
多重下拉选择题
Refer to the lever in the diagram above and answer the following: This is a __1st class __ lever. The lever has a __mechanical “advantage” MA> __ The function of the lever is to __allow less effort to be required to overcome the resistance __.
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标准答案
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思路分析
To analyze the lever question properly, I will go through each proposed answer option and discuss what it means in the context of a 1st class lever as shown in the diagram.
Option 1: "1st class"
- A first-class lever is defined by having the fulcrum positioned between the effort (input force) and the load (resistance). In many common lever setups, including the one depicted with a car and a person applying force via a bar, this fulcrum placement matches a first-class arrangement. From the given prompt, whic......Login to view full explanation登录即可查看完整答案
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类似问题
If a first-class lever has a resistance of 400 lbs at a distance of 10 inches from the fulcrum, and the effort arm is 50 inches, how much effort force is required to lift the resistance?
The lever below is a 2nd class lever, this type of lever has a mechanical advantage of > 1 .
What is the mechanical advantage of the simple machine in the figure if li = 4 lo ?
Refer to the lever in the diagram above and answer the following: This is a __2nd class __ lever. The lever has a __mechanical “advantage” MA>1 __. The function of the lever is to __allow less effort to be required to overcome the resistance __.
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