Question

100 points question .It is easier to cut with sharp knive than blunt one ​

Answer 1

Yes, because the sharp knife has a smaller surface area which increase the pressure and it is easier to cut object with it.

In either way the blunt one has higher surface are and reduces the pressure.

Answer 2

Answer -

Pressure = Force / Area;

pressure is the deciding factor to cut the material using knife. if the knife is sharp, contact area with the material to be cut is less. If it is blunt, contact area will be more.hence for the given force, pressure is more with sharp knifeand pressure is less with blunt knife.

Hence sharp knife cut the material easier than blunt one.