Question

it is difficult to cut cloth using a scissor with blunt edge

Answer 1

Hey there!

The area is larger of blunt blades to comparison to sharp edges blades.
We know,

$\boxed{\text{Large Area }\to \text{Less Pressure}}$

So, due to large area, blunt blades have low pressure. 

Hence, it is difficult to cut the cloth using a scissor with blunt edges.

Hope It Helps You! 

Answer 2

Blunt blades have larger area compared to sharp edge blades.Thus,the applied force produces a lower pressure in case of blunt blades . hence it is difficult to cut cloth using a blunt scissor..

Hope it helps you buddy..