Question

A force of 50N is applied on a nail. The area of the head tip of the nail is 0.005cmsquare and 0.001 cm square respectively. Calculate the pressure exerted on the head and on the tip of the nail

Answer 1

Given
Force, F = 50 N
Area of tip of the nail, A1 = 0.005 cm2
​Area of head of the nail, ​A2 =  0.001 cm2
​
Pressure at the tip of the nail (P1) is given byP1 =FA1=50×100000.005⇒P1=100000000 N m−2Pressure at the head of the nail (P2) is given byP2=FA2=50×100000.001⇒P2=500000000 N m−2
 

Answer 2

area at head = 0.005 cm² = 0.00005 m²

p = force/area = 50/0.00005 = 1,000,000 N

area at tip = 0.001 cm² = 0.00001 m²

p = 50/0.00001 = 5,000,000