Explain

Why does a sharp nail easily penetrate wood, but not a blunt nail?

We know that Pressure is inversely proportional to area.

So, smaller area will exert more pressure, thus a sharp nail has small area that comes in contact with the object, so more pressure can be applied on the object. Where as a bluntnail has more area than a sharpnail and the pressure exerted by the bluntnail will be less as compared to that of a sharp nail.

Therefore it becomes easy to penetratea sharp nail easily through wood than a blunt nail.

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