Chapter 14, Problem 30R

To determine

The SI unit of the pressure.

Answer to Problem 30R

The SI unit of pressure is Newton per meter square $\left(\text{N}/{\text{m}}^2\right)$ .

Explanation of Solution

Introduction:

The pressure is same as the force acted on the unit area of the object. The SI unit of the force is Newton and SI unit of the area is meter square.

The expression of the pressure on an object is given as,

  $P=\frac{F}{A}$

From the above expression, the SI unit of the pressure is the ratio of the SI unit of the force and SI unit of the area. So, the SI unit of the pressure is Newton per meter square $\left(\text{N}/{\text{m}}^2\right)$ .

Conclusion:

Thus, the SI unit of pressure is Newton per meter square $\left(\text{N}/{\text{m}}^2\right)$ .