Question

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

Answer 1

Explanation:

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:

Because the more the surface area the less the pressure and the less the surface area the more the pressure. We will need more pressure to cut and pierce things that's why tools meant for cutting always have sharp edges.

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