physics, action is a scalar quantity that describes how the balance of kinetic versus potential energy of a physical system changes with trajectory....

In this simple approximation, the trajectory takes the shape of a parabola. Generally when determining trajectories, it may be necessary to account for...

orthogonal trajectory is a curve which intersects any curve of a given pencil of (planar) curves orthogonally. For example, the orthogonal trajectories of a...

F2, ..., Fn act on the points X1, X2, ..., Xn in a rigid body. The trajectories of Xi, i = 1, ..., n are defined by the movement of the rigid body. This...

changing the angle with which a missile will impact on landing. Lofted trajectories are sometimes used in both missile rocketry and in spaceflight. When...

trajectories, all hyperbolic trajectories are also escape trajectories. The specific energy of a hyperbolic trajectory orbit is positive. Planetary flybys...

In physics, the fourth, fifth and sixth derivatives of position are defined as derivatives of the position vector with respect to time – with the first...

unsolved problems grouped into broad areas of physics. Some of the major unsolved problems in physics are theoretical, meaning that existing theories...

Wiktionary, the free dictionary. The three-body problem is a trajectory problem in physics. It may also refer to: Euler's three-body problem, a variant...

tracing involved analytic solutions to the ray's trajectories. In modern applied physics and engineering physics, the term also encompasses numerical solutions...