Reaktsioonimassiga

Reaktsioonimassiga is a term used in Estonian to describe the concept of reaction mass. In physics and engineering, reaction mass refers to the material that is expelled from a rocket or jet engine to produce thrust. According to Newton's third law of motion, for every action, there is an equal and opposite reaction. In the context of propulsion, the action is the expulsion of reaction mass at high velocity, and the reaction is the forward thrust that propels the vehicle. The effectiveness of a propulsion system is often measured by its specific impulse, which is related to the momentum imparted to the reaction mass. Different types of propulsion systems, such as chemical rockets, ion thrusters, and nuclear rockets, utilize different forms of reaction mass and achieve varying levels of efficiency. The choice of reaction mass and its expulsion mechanism are critical design considerations for any spacecraft or aircraft that relies on reaction propulsion. Minimizing the mass of the propellant while maximizing its exhaust velocity are key objectives in achieving efficient propulsion.