Explain why a drawing pin has a small point on one end and a broad top at the other end

  • 0 votes

Question to do with preasure

Posted Thu 30th January, 2014 @ 19:57 by Penruddocke

2 Answers

  • 1 vote

pressure is equal to force over area, therefore when you apply a force onto the broad side of the drawing pin, the same amount of force is applied to the wall on the small point. However the pressure caused is less on the broadside (due to the larger area) so you do not injure youself and is much higher on the pin side (due to the tiny area), so it can penetrate the notice board.

hope this helps,

RTF

Answered Mon 10th February, 2014 @ 13:50 by Ragnaros the Firelord
  • -1 votes

So you don't ******* I N G  P R I C K yourself you idiot. If you were a LAD you would know

Answered Tue 4th February, 2014 @ 09:43 by LAD_LAD_LAD