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Trajectory
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Everything about Trajectory totally explained

Trajectory is the path a moving object follows through space. The object might be a projectile or a satellite, for example. It thus includes the meaning of orbit - the path of a planet, an asteroid or a comet as it travels around a central mass. A trajectory can be described mathematically either by the geometry of the path, or as the position of the object over time.
   In control theory a trajectory is a time-ordered set of states of a dynamical system (see for example Poincaré map). In discrete mathematics, a trajectory is a sequence (f^k(x))_=(1- an heta analpha)secalpha

Orbiting objects

If instead of a uniform downwards gravitational force we consider two bodies orbiting with the mutual gravitation between them, we obtain Kepler's laws of planetary motion. The derivation of these was one of the major works of Isaac Newton and provided much of the motivation for the development of differential calculus.

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