Question
Download Solution PDFWhich one of the following sketches correctly describes a lever of second class?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT:
Lever of Second Class
- A lever of the second class has the load positioned between the effort and the fulcrum.
- This type of lever always has the effort arm longer than the load arm, which means the mechanical advantage is always greater than 1.
- Examples of second-class levers include wheelbarrows, nutcrackers, and bottle openers.
EXPLANATION:
- In a second-class lever:
- The fulcrum is at one end of the lever.
- The load is positioned in the middle.
- The effort is applied at the opposite end from the fulcrum.
- Considering the options given, the correct sketch of a second-class lever should represent the load between the fulcrum and the effort.
Therefore, the sketch that correctly describes a lever of second class is Option 2.
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