Question

Why do tools meant for cutting always have sharp edges?​

Answer 1

Answer:

The smaller the area, larger the pressure on a surface for the same force. This is why tools meant for cutting and piercing always have sharp edges. By increasing the area we can also reduce the pressure on a surface for the same applied force

Answer 2

Answer:

if you cut with sharp blade and a blunt ,using the same force with each the sharp blade has a much smaller surface area than the blunt blade .this results in the sharp blade translating that force in to more pressure at the cutting surface, and therefore an easier out

Explanation:

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