Question

One has to keep the edge of a knife very sharp to cut vegetables. Why is it so​

Answer 1

Answer:

Explanation:hiiiiiiiiiii...........a sharp knife has a very thin edge to its blade so it cuts objects better because due to its very thin edge,the force of our hands falls over a very small area of the object producing a large pressure.and this large pressure cuts the object easily.on the other hand a blunt knife has a thicker edge .a blunt knife does not cut an object easily because due to its thicker edge,the force of our hands falls over a larger area of the object and produces lesser pressure.this lesser pressure cuts the object with difficulty........

hope you 've got it........

Answer 2

If area is less than pressure increases so the knife is kept sharp