Answer:
A
sharp knife has a very thin edge to its blade. A sharp knife cuts objects better
because due to its very thin edge, the force of our hand falls over very small
area of the object producing a large pressure. And this large pressure cuts the
object easily. On the other hand, a blunt knife has a thicker edge. A blunt
knife does not cut an object easily because due to its thicker edge, the force
of our hand falls over a larger area of the object and produces lesser
pressure. This lesser pressure cuts the object with difficulty.
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