02-10-2014
Physics

Answered

When Jenny writes the pencil exerts a force of 5N on the paper

The Area of the pencil in contact with the paper is 0.5 mm² calculate the pressure of the pencil on the paper
Give the Unit.

Answer :

03-10-2014

[tex]Formula\ for\ pressure:\\\\ pressure=\frac{Force}{Area}\\\\unit\ of\ pressure[\frac{N}{m^2}=Pa] Force=5N\\ Area=0,5mm^2=0,0000005m^2\\\\ pressure=\frac{5N}{0,0000005m^2}=10000000Pa=10MPa\\\\ Pressure\ of\ the\ pensil\ on\ the\ paper\ is\ equal\ to\ 10MPa.[/tex]

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