a drawing pin is pushed against a wooden board with a force of 25 Newton. calculate the pressure exerted at the tip of pin. ( take, area of the tip,=0.1mm square)
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pressure = force/area
=25N/0.1×10^-6 m
=25 * 10^6 /0.1
=2.5 * 10^8 pa
=25N/0.1×10^-6 m
=25 * 10^6 /0.1
=2.5 * 10^8 pa
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