Question

All cutting instruments like blades, axes, etc. are sharper at the cutting edge. Give reasons.

Answer 1

The pressure exerted due to a small surface area is high compared to pressure due to large surface area. This is derived from the equation, Pressure = Force/Area Which implies an equal force can exert higher pressure on a small area. This is why the cutting edges of tools like knives, blades etc are provided with sharp edges. The high pressure at th

Answer 2

Answer:

The cutting edges of the tools like blades, knives, etc. have been provided with sharp edges as  sharpened edges have lesser area hence the pressure applied on the surface increases. Thus they can

easily cut the given surface.