If \(\vec{f}\) is the body force of an infinitesimally small element ( – McqOptions

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1.	If \(\vec{f}\) is the body force of an infinitesimally small element (volume dx dy dz and density ρ) moving along with the flow (velocity \(\vec{V}\)), Which term is the work done by the body force?
A.	\(\vec{f}.\vec{V}\)dx dy dz
B.	\(\rho\vec{f}.\vec{V}\)
C.	\(\rho\vec{f}.\vec{V}\)dx dy dz
D.	\(\rho\vec{f}\)dx dy dz
Answer» D.

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