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POWER APPLICATIONS
The concepts of rigid body or particle dynamics are used in engineering when motion is involved. This can be motion of a fluid element, a controller such as a flap or landing gear mechanism, and trajectories of vehicles.
It is important that the principles of dynamics are well understood by engineers. An engineering problem can be thought of as a word problem, similar to word problems solved in mathematics. Dynamics provides the basics by which the equations of motions that govern the problem can be derived and applied.
Power is derived from kinetic energy for the principle of work and energy. For any moving object, kinetic energy is present. Kinetic energy can be used in energy methods to determine forces, displacement, or velocity of a moving body.