Resistance refers to the force that opposes the motion of an object through a fluid or any other medium. In the case of ships, resistance primarily includes the friction between the ship's hull and the water, as well as the wave-making resistance caused by the movement of the bow and stern through the water.
Propulsion encompasses the process of creating a force that moves an object forward through a fluid or any other medium. In the case of ships, propulsion usually involves the use of engines or other means of creating a thrust force, such as sails or oars, to move the vessel through the water. The main objective of propulsion is to overcome the resistance and maintain the desired speed and course of the vessel.
Publication date: