The drag force D on a certain object in a certain flow is a function of the coefficient of viscosity p, the flow speed, V and the body dimension L (for geometrically similar objects); then D is proportional to:

\[\frac{{{\mu }^{2}}{{V}^{2}}}{{{L}^{2}}}\]

The drag force D on a certain object in a certain flow is a function o

1.	The drag force D on a certain object in a certain flow is a function of the coefficient of viscosity p, the flow speed, V and the body dimension L (for geometrically similar objects); then D is proportional to:
A.	\[L\,\mu \,V\]
B.	\[\frac{{{\mu }^{2}}{{V}^{2}}}{{{L}^{2}}}\]
C.	\[\frac{D}{d}={{4}^{1/5}}\]
D.	\[\frac{\mu \,L}{V}\]
Answer» B. \[\frac{{{\mu }^{2}}{{V}^{2}}}{{{L}^{2}}}\]

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The drag force D on a certain object in a certain flow is a function of the coefficient of viscosity p, the flow speed, V and the body dimension L (for geometrically similar objects); then D is proportional to:

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