Wide Width Water Shoes Water Trough Problem?

Water trough problem? - wide width water shoes

It is a hollow. It is 10 meters long and 6 meters wide. Each end is a trapezoid of height 2 with a base of 2 meters below the base of 6 feet above the water flows through the valley at a rate of 5 cubic meters per minute. What is the area of water surface, let h, the depth of the water in the tub or B, the width of the water in the stack, and where V is the volume of water in the tub.

a) Find an expression of b versus h
b) Determine the expressions of A and V as a function of h
dt c) Determine that is / where the water depth, h is 1 / 2 meters, the corresponding units.
d) Find dA / dt when h = are 1 / 2 meters, the corresponding units.