Question

The area of the tip of a screw is 0.5mm2 and it's weight is 0.5N calculate the pressure (in pa) exerted by the screw on a wooden plank

Answer 1

Explanation:

F=0.5N

A= 0.5 mm2 = 0.5/10^6 M2

and P=F/A

so,

Pressure (P)= (0.5)/(0.5*10^6)

=10^6 Pa

or 1MPa