Question

Why is it difficult to cut with a blunt knife

Answer 1

It is difficult to cut with a blunt knife because blunt knife occupies more area and exerts less pressure but sharp knife occupies less area and exerts more pressure

Answer 2

A blunt knife has more area as it has thicker edges and thus the pressure exerted by it will be less as compared to a sharp knife. That's why its difficult to cut with a blunt knife.