I am using an infinitesimally small element of fluid moving along with – McqOptions

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1.	I am using an infinitesimally small element of fluid moving along with the flow as my model. What is the acceleration of this model in x-direction?
A.	(a_x= frac{D vec{V}}{Dt} )
B.	(a_x= frac{ partial vec{V}}{ partial t} )
C.	(a_x= frac{Du}{Dt} )
D.	(a_x= frac{ partial u}{ partial t} )
Answer» D. (a_x= frac{ partial u}{ partial t} )

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