It is difficult to cut things with a blunt knife because Physics - Questions and Answers

It is difficult to cut things with a blunt knife because

(a)the pressure exerted by knife for a given force increases with increase in bluntness

(b)a sharp edge decreases the pressure exerted by knife for a given force

(c)a blunt knife decreases the pressure for a given force Right sign

(d)a blunt knife decreases the area of intersection

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