But lets just talk about the hull since it represents the greatest component of total drag. Or, when you fall water skiing. That usually smarts some. On a ship, things like hull barnacles obviously contribute to parasitic drag. The other component of total hull resistance is induced drag.
Induced drag is a little more complicated to explain.
Let s just say that it is proportional to speed and is comprised of things like hull wave generated resistance. We will just state that, the faster your hull tries to go through the water, the greater the induced drag developed. Any parasitic drag present will also be summed to the total drag equation. Conversely, the slower the hull speed, the less induced and parasitic drag. And so it is.