flow in parallel plates

Feb 2017
Hello to everyone,

I am attending a course of advanced fluid mechanics and i was given the following exercise in the attached picture which from what i understand should not be so tough. But since my knowledge is still very restricted, i had only basic fluids some years ago, how should i proceed with that? i have only a bunch of equations and i have no idea how to implement them!
What should/could i assume for this case?
thank you in advance for your time spent answering me. :)