Hey guys, i am new to this subject and need some help. The idea is that in area AxB there is a constant airspeed of for example 6 m/s. I would like a formula or another way I can calculate the airspeed at area ExB. I hope you guys can help me out. Thanks. If image is not visible it is on : "https://drive.google.com/file/d/0ByEctI_l9fr_QmRJQkZualBWWWs/view?usp=sharing"