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Question
Give reasons- the cutting edges of tools like knives, blades, etc are provided with sharp edges.
Give reasons- the cutting edges of tools like knives, blades, etc are provided with sharp edges.
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Solution
Hi,
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 the end of these sharp surfaces can easily pierce through wooden, plastic etc surfaces,
Hi,
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 the end of these sharp surfaces can easily pierce through wooden, plastic etc surfaces,
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