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6. What force must you exert on a ball point pen in order to apply a pressure of .08 N/mm? on a piece of paper, it the ball of the pen has a surface area of 1.22 mm² touching the paper?
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10 votes
10 votes
6. What force must you exert on a ball point pen in order to apply a pressure of .08 N/mm?

on a piece of paper, it the ball of the pen has a surface area of 1.22 mm² touching the
paper?

User Martin Sax
by
3.1k points

1 Answer

13 votes
13 votes
  • Area=1.22mm^2=0.00001m^2
  • Pressure=0.8Pa


\\ \sf\longmapsto Force=Pressure(Area)


\\ \sf\longmapsto Force=0.00001(0.8)


\\ \sf\longmapsto Force=0.000008N

User Michael Horn
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3.1k points
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