Which one of the following equations gives the velocity distribution across a circular pipe having a viscous flow?

\[u={{u}_{\max }}\,[{{R}^{2}}-{{r}^{2}}]\]

\[u={{u}_{\max }}\,[1-{{(r/R)}^{2}}]\]

\[u={{u}_{\max }}\,{{[1-(r/R)]}^{2}}\]

\[u={{u}_{\max }}\,{{[1+(r/R)]}^{2}}\]

Which one of the following equations gives the velocity distribution a

1.	Which one of the following equations gives the velocity distribution across a circular pipe having a viscous flow?
A.	\[u={{u}_{\max }}\,[1-{{(r/R)}^{2}}]\]
B.	\[u={{u}_{\max }}\,[{{R}^{2}}-{{r}^{2}}]\]
C.	\[u={{u}_{\max }}\,{{[1-(r/R)]}^{2}}\]
D.	\[u={{u}_{\max }}\,{{[1+(r/R)]}^{2}}\]
Answer» B. \[u={{u}_{\max }}\,[{{R}^{2}}-{{r}^{2}}]\]

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Which one of the following equations gives the velocity distribution across a circular pipe having a viscous flow?

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