Physics, asked by vaishnavichougule19, 8 months ago

Why does a knife have a sharp edge,and a needle has a sharp tip?

Answers

Answered by Anonymous
1

Answer:

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Answered by omandlik12
2

Answer:

The cutting edges of tools like blades, knives etc., are provided with sharp edges to cut the things easily as the sharp edges has small area on which the force is applied, hence more pressure is applied

→A sharp knife cut objects better because due to its very thin edge, the force of our hand falls over a very small area of the object producing a large pressure and this large pressure cuts the object easily. While a blunt knife has a thicker edge

→All sewing needles and pins have a sharp tip for this reason. The tip of a needle is sharp so that due to its sharp tip, the needle may put the force on a very small area of the cloth producing a large pressure sufficient to pierce the cloth being stitched

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