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:

as we know that, pressure = force/area

area of tip of screw = o.5 mm = 0.5/1000 = 0.0005m  

force= weight of screw = 0.5N

pressure = 0.5/0.0005= 1000pa