Question

Explain why cutting tools have sharp edges

Answer 1

cutting tools have sharp edges because if the area is less pressure exerted will be more and u can cut easily. this is because pressure and area are inversely proportional to each other

Answer 2

Cutting tools have sharp edges to reduce the effort applied in cutting.

Explanation:

• The equation which gives relation about pressure and force is as follows:

Pressure = $\frac{Force}{Area}$

• From the above formula, we can say that the weight applied on a body is inversely proportional to the region on which the pressure is applied.
• The pressure applied to a sharp and narrow region is more than the pressure applied to the blunt and board region.
• Due to this reason the cutting tools are made with sharp edges as pressure is more concentrated and facilitates easy cutting of large objects.

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