contestada

If the point of the nail can be approximated as a circle with
radius 2.00 10 m, what is the pressure in megapascals
(MPa) exerted on the wall if a hammer strikes the nail with a
force of 104 N? Use 3.14 for Pi

Respuesta :

Answer:

P = 795.77 Mpa

Explanation:

Given that,

Force exerted by the hammer, F = 10⁴ N

The nail can be considered as a circle with radius of [tex]2\times 10^{-3}\ m[/tex]

We need to find the pressure exerted on the wall. Pressure is equal to force acting per unit area. So

[tex]P=\dfrac{F}{A}\\\\P=\dfrac{10^4\ N}{\pi \times (2\times 10^{-3})^2}\\\\P=795774715.45\ Pa[/tex]

We know that, 1 MPa = 1000000 Pa

So, P = 795.77 Mpa

So, the pressure exerted on the wall is 795.77 Mpa.