why do drawing pins have pointed ends?
abhi1o1:
bcz p=f/a less area means point so easly get penetrated
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pins have pointed ends so that they gets embedded easily.... or in other words...they r pointed so as to decrease the area of contact which thus leads in easily embedding the pins easily :)
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To increase pressure,so that the colour will be coated easily
If area is less pressure becomes more
If area is less pressure becomes more
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