How does sharping the knife help in cutting the object easily
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Because of less surface area.
As surface area decreases , the pressure increase.
As surface area decreases , the pressure increase.
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when knife is sharp, the force is applied on a small region. While for blunt knife though force is same but is being applied on a larger area. since the sharp knife will come in contact with less surface, it will become easier for it to cut that object.
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