Question

Why is it easier to cut with a sharp knife than a blunt one?

Answer 1

pressure is the answer.

you apply force to any material...if area of contact is very less you get larger pressure and it can cut easily...with blunt knife area is significant so cuts become difficult

Answer 2

$\huge\texttt{Answer;}$

Pressure is inversely proportional to area. Sharp knife has a small area of contact than the blunt knife. Thus, a force will exert more pressure while using a sharp knife than while using a blunt knife.