$(30$ points$)$ Consider the steady, incompressible flow of blood $($density of $1080k\frac{g}{m^3})$ through the vascular network, as shown in Figure $1.$ Evaluate the components of force that must be provided by the adjacent tissue to keep the blood vessel in place. You may assume that the blood vessels are rigid and impermeable. For

simplicity, assume that the weight of the blood vessel and the blood within it is negligible. It is known that the velocity at all ports is laminar given by $u(r)=2($:$u$:$)[1-(\frac{r}{R}{)}^2]$ such that $($:$u^2$:$)=1\mathrm{.}33($:$u$:${)}^2$ and $($:$u^3$:$)=2($:$u$:${)}^3.$

n$.=16mm$