Question

the cutting edge of a knife should be as sharp as possible.why? ​

Answer 1

Answer:

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

Explanation:

Answer 2

the cutting edges of knife should be sharp. This is because when the area of the knife decreases , pressure . ... This means that when area increases pressure decreases.