Question

A drawing pin is pushed against a wooden table with a force of 10 N. Calculate the pressure exerted by the pin at a point on the table, if area of the point is 0.01 mm 2 .

Answer 1

f=10 N 
area=0.01mm² =0.0000001m²
therefore ,
pressure=force/area
=10/0.0000001
=1000000000 N
therefore pressure applied = 1000000000 N
i hope it helps.....

Answer 2

please see the attachment.