Question

it is easier to cut with a sharp knife than a blender one

Answer 1

It is easier to cut with a sharp knife because in sharp knife its area is less and pressure is more .So it helps in cutting easily.

Answer 2

Here is your answer:-

Yes, it is easier to cut with sharp knife than a blender one because when we use blend knife is covers more area and we need to apply more force to cut something.
But in case of sharp knife when we use it this knife covers less area and hence less pressure is required to cut something.

Hope this answer will help you:-)