Nail tips exert tremendous pressures when they are hit by hammers because they exert a large force over a small area. what force (in n) must be exerted on a nail with a circular tip of 1.15 mm diameter to create a pressure of 2.63 ✕ 109 n/m2? (this high pressure is possible because the hammer striking the nail is brought to rest in such a short distance.)

2780 N

Explanation:

Pressure is defined as the ratio between the force applied and the area of the surface:

Here we know the pressure:

we also know the diameter of the tip, d = 1.15 mm, so we can calculate the radius

and so the area

And so we can re-arrange the equation to find the force:

this is poiselle's equation from fluid mechanic in physics. mech eng

i just did an experiment like this in my science class. also the answer is yes, it will get separated because they are two opposites meaning if they are opposite they can not attract.

hope this .!