Question

The mass of a fluid system is 0.331 slug, its density is 30 lb/ft3 and g is 31.90 fps2. Find (a) the specific volume, (b) the specific weight, and (c) the total volume.

Answer 1

The specific volume is the reciprocal to density:

$$v=\rho^{-1}=0.033\text{ ft}^3/\text{lb}.$$

The specific weight is

$$\gamma=\rho g=957\text{ lb}/\text{(ft}·\text{s)}^2.$$

The total volume is

$$V=\frac m\rho=0.355\text{ ft}^3.$$