Aircraft performance : an engineering approach Flight is the process in which a vehicle moves through the air without any direct mechanical support from the ground. In Physics science of the action of forces on material bodies is referred to as Mechanics. The science of Mechanics is basically divided into two branches: 1. Dynamics and 2. Statics. Branch of mechanics that deals with the motion of objects in relation to force mass momentum and energy is referred to as Dynamics. The topic of flight mechanics (or Flight Dynamics) is to study the motion of flying objects (e.g. aircraft missile) through air Provided by publisher