Question

explain why does a sewing needle have a sharp pointed tip

Answer 1

Hey Nandkishore..!!!

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Pls find the answer below:

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♦ In a sewing needle tip, as we know, the surface area is less. Hence the pressure exerted will be more. Greater the surface area, lesser the pressure and lesser the surface area, greater the pressure. So, as the surface area is very little, the pressure exerted will be more.

♦ Hence, The tip of the sewing needle is pointed.

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Hope it helps..!!! ☺☺☺

Answer 2

the sharp tip of needle has a smaller area and the pressure is inversely proportional to area of contact. so it increase the pressure exerted by needle for a given force and easily penetrate into the surface.