Solution
= Solution
At $G=G_0$, the linear terms cancel and
$$
u(y)=U\frac{y^2}{h^2}.
$$
The volume flux per unit width is
$$
Q=\int_0^h u(y)\,dy
=\boxed{\frac{Uh}{3}}.
$$
= Solution
At $G=G_0$, the linear terms cancel and
$$
u(y)=U\frac{y^2}{h^2}.
$$
The volume flux per unit width is
$$
Q=\int_0^h u(y)\,dy
=\boxed{\frac{Uh}{3}}.
$$