The person drives a nail into the wall, hitting it with a hammer with a force of 30H.

The person drives a nail into the wall, hitting it with a hammer with a force of 30H. What is the pressure of the nail on the wall when hitting if the area of its edge is 0.01 cm squared?

F = 30 Newton – the force that a person applies to drive a nail into a wall;

s = 0.01 cm2 (square centimeter) is the area of the nail tip.

It is required to determine P (Pascal) – how much pressure the nail exerts on the wall.

We translate the units of measurement of the area into the SI system:

s = 0.01 cm2 = 0.01 * 10 ^ -4 = 10 ^ -6 m2 (square meter).

Then the pressure of the nail will be equal to:

P = F / s = 30/10 ^ -6 = 30 * 10 ^ 6 Pascal = 30 MPa.

Answer: the pressure of the nail on the wall is 30 MPa.