I've got the following question I'm trying to answer, however I'm just not really sure where to start. I assume I need to find the pressure on the plate and then integrate over area to find the force, but I'm just not sure how to begin and couldn't find anything relevant through searching on Google etc. to help give me a start.
Thanks.
Question:
A line source of strength 2πm is located a distance a above a horizontal plate that extends infinitely in both horizontal directions. Find the force per unit width on the plate, ignoring gravity and taking the pressure below the plate to be uniform and equal to the stagnation pressure of the fluid. (You may find the substitution x = a tan θ useful in evaluating any integrals which may arise)