Properties of Matter:
The fluid pressure at a point within a fluid is given as :
P = h ρ g
(i) Streamline motion, and
(ii) Turbulent motion.
a_{1} v_{1} = a_{2} v_{2}
where a_{1} and a_{2} are the areas of two different cross-sections of a tube of flow and v_{1} and v_{2} respectively are the velocities of flow through these sections.
P/ ρ + gh + v^{2}/2= constant
Strains are of three types, namely
(i) Linear strain,
(ii) Volume strain, and
(iii) Shearing strain.