Question

It is difficult to cut cloth using a pair of scissors with blunt blades.why ?

Answer 1

pressure is inversely proportional to the area , blunt blades have large so the pressure exerted by them is small and hence its difficult to cut cloths using a pair of scissors with blunt blades.

Answer 2

scissors with blunt blades have more area then scissors with sharp blades.More area less pressure and less area more pressure.Therefore It is difficult to cut cloth using a pair of scissors with blunt blades.

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