QUESTION $5$

This parallel pipe system is composed of branches $1$ and $2.$ Pipe $1$ has a friction factor of $0\mathrm{.}26,$ is $3$ m long, and has a $75$ mm diameter. Pipe $2$ has a friction factor of $0\mathrm{.}15,$ is $8$ m long, and has a $40$ mm diameter. Determine the velocity in pipe $2,$ in $\frac{m}{s},$ if the velocity in pipe $1$ is $30\frac{m}{s}.$ You may neglect minor losses.