The velocity profile in water flow down a channel is given by: u=(U )(y/h)^0.1428 Where y = 0 and denotes the bottom and the depth is h, see the figure. If U = 1.4 m/s, h = 3 m, and the width is 17 m. How long will it take 10^5 m3 of water to pass this section of the channel.