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Q.

Cutting objects becomes easier with sharp edges, because pressure acting on a small surface area is ____ [large/ small] as compared to that on a large surface area.


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Detailed Solution

Cutting objects becomes easier with sharp edges, because pressure acting on a small surface area is large as compared to that on a large surface area.
Since pressure is inversely proportional to area, a smaller area of contact will apply more pressure, and a broader area will apply less pressure. That’s why the cutting instruments such as knives, blades etc. are sharpened from the cutting edge. Cutting objects becomes easier with sharp edges because the pressure acting on a small surface area is large compared to that on a large surface area.
Pressure=ForceArea
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