Any gain or loss of kinetic energy and linear momentum by a passing spacecraft is correspondingly lost or gained by the gravitational body, in accordance with Newton's Third Law. The "assist" is provided by the motion of the gravitating body as it pulls on the spacecraft. Gravity assistance can be used to accelerate a spacecraft, that is, to increase or decrease its speed or redirect its path. orbit around the Sun) and gravity of a planet or other astronomical object to alter the path and speed of a spacecraft, typically to save propellant and reduce expense. A gravity assist, gravity assist maneuver, swing-by, or generally a gravitational slingshot in orbital mechanics, is a type of spaceflight flyby which makes use of the relative movement (e.g.
0 kommentar(er)
