Question

Given below are certain situations in which variation in pressure is brought about by increasing or decreasing the area of surface . Explain how these are useful. a) constructing a knife with sharp edge. b) constructing buildings with wider basement. c) Making a sewing needle with a sharp tip.​

Answer 1

Answer:

It is easier to cut with a sharp knife than with a blunt one,

Blunt Blades have larger area compared to the sharp-edged blade.

Thus the applied force produces a lower pressure in case of blunt blades, which makes it difficult to cut the object.

Explanation:

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