Question

Why it is difficult to cut an onion with a blunted knife?

Answer 1

Answer:

We know that pressure depends upon the area that the force is acting. Hence when we use a blunt knife, as force is applied on more area pressure is less .So it is difficult to cut an onion with a blunt knife...

Answer 2

Answer:

Due to Increased area.

Explanation:

We can't cut the onion with a blunt knife because it has a larger area in contact hence the force applied will be less that's the reason why we can't cut an onion with a blunt knife. If the bade was sharp so the contact area would have been less and would apply a larger force on a small area.