Atmospheric drag is a form of drag, which is the force that opposes an object moving through a liquid or gas. For a solid object moving through a fluid or gas, drag is the sum of all the aerodynamic or hydrodynamic forces in the direction of the external fluid flow. ... In physics, a net force acting on a body causes that body to accelerate; that is, to change its velocity. ... A liquid will assume the shape of its container. ... Gas (actually, as), the GNU assembler, is the default GCC back-end. ...
In astrodynamics depending on the situation atmospheric drag can be regarded as inefficiency requiring expense of additional energy during launch of the space object or as a bonus simplifying return from orbit. Astrodynamics is the study of the motion of rockets, missiles, and space vehicles, as determined from Sir Isaac Newtons laws of motion and his law of universal gravitation. ... Rockets (including missiles) can be launched from the following: for a launch into an orbital spaceflight and beyond: a launch pad, including a floating platform (see San Marco platform, Sea Launch) for the launch into a suborbital flight also: a missile silo a mobile launcher vehicle a submarine air launch...
where: cd is the body's coefficient of drag (that has to be determined experimentally), A is the body's cross-sectional area, ρ is the air density, and v is the body's velocity.
For a solid object moving through a fluid or gas, drag is the sum of all the aerodynamic or hydrodynamic forces in the direction of the external fluid flow.
Beyond these two kinds of drag there is a third kind of drag, called wave drag, that occurs when the solid object is moving through the fluid at or near the speed of sound in that fluid.
The overall drag of an object is characterized by a dimensionless number called the drag coefficient, and is calculated using the drag equation.
Atmosphericdrag is a form of drag, which is the force that opposes an object moving through a liquid or gas.
In astrodynamics depending on the situation atmosphericdrag can be regarded as inefficiency requiring expense of additional energy during launch of the space object or as a bonus simplifying return from orbit.
is the body's coefficient of drag (that has to be determined experimentally), A is the body's cross-sectional area, Ï is the air density, and v is the body's velocity.
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