A 25% scale model of an undersea vehicle that has a maximum speed of 16 m/s is to be tested in a wind tunnel with a pressure of 6 atm to determine the drag characteristics of the fullscale vehicle....

A 25% scale model of an undersea vehicle that has a maximum speed of 16 m/s is to be tested in a wind tunnel with a pressure of 6 atm to determine the drag characteristics of the fullscale vehicle. The model is 3 m long. Find the air speed required to test the model and find the ratio of the model drag to the fullscale drag.