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Question
Why are cutting instruments sharpened? Explain.
Why are cutting instruments sharpened? Explain.
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Solution
The pressure exerted on a given surface depends upon the following factors:
- Pressure is directly proportional to the force applied on a surface.
- Pressure is inversely proportional to the area of cross-section of a surface.
Hence, all the cutting instruments such as knives, blades, etc. are sharpened from the cutting edge. As the cutting edge is sharpened, the area of cross-section decreases, and pressure exerted by them increases. Thus, they can easily penetrate a given surface.
The pressure exerted on a given surface depends upon the following factors:
- Pressure is directly proportional to the force applied on a surface.
- Pressure is inversely proportional to the area of cross-section of a surface.
Hence, all the cutting instruments such as knives, blades, etc. are sharpened from the cutting edge. As the cutting edge is sharpened, the area of cross-section decreases, and pressure exerted by them increases. Thus, they can easily penetrate a given surface.
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