Question

All cutting instruments are sharped at the edges why?

Answer 1

this fact is so to decrease the area which in turn increases pressure applied. as pressure is inversely proportional to area and directly proportional to force .

p=f/a. since pressure increases with decrease in area thus we need to apply less force to cut the object by sharp instruments...thanks .. plz mark this brainliest..

Answer 2

As we all know, small area exerts more pressure. Smaller the area, larger the pressure. Cutting instruments have sharp edges and hence less area. Since less area creates more pressure, it is easier to cut things easily. Hence, cutting instruments have sharp edges.