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Momentum (other)
Momentum, or linear momentum, is a vector quantity in physics. Momentum may also refer to: Economics * Momentum (finance), an empirical tendency for rising asset prices to continue to rise * Momentum (technical analysis), an indicator used in technical analysis of asset prices * Momentum investing, a system of buying stocks or other securities Mathematics, science, and technology * Angular momentum, in physics, the rotational equivalent of linear momentum * Momentum or Moment (unit), moment, a medieval unit of time * Behavioral momentum, a theory and metaphor used in the quantitative analysis of behavior * Momentum (electromagnetic simulator), a software package from EEsof * Momentum theory, a theory in fluid mechanics * Momentum, in mathematics, a correction term in Gradient descent#Momentum or heavy ball method, gradient descent and Stochastic gradient descent#Momentum, stochastic gradient descent * Momentum, a solar car built in 2005 by the University of Michigan Solar Car Tea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Momentum
In Newtonian mechanics, momentum (more specifically linear momentum or translational momentum) is the product of the mass and velocity of an object. It is a vector quantity, possessing a magnitude and a direction. If is an object's mass and is its velocity (also a vector quantity), then the object's momentum is : \mathbf = m \mathbf. In the International System of Units (SI), the unit of measurement of momentum is the kilogram metre per second (kg⋅m/s), which is equivalent to the newton-second. Newton's second law of motion states that the rate of change of a body's momentum is equal to the net force acting on it. Momentum depends on the frame of reference, but in any inertial frame it is a ''conserved'' quantity, meaning that if a closed system is not affected by external forces, its total linear momentum does not change. Momentum is also conserved in special relativity (with a modified formula) and, in a modified form, in electrodynamics, quantum mechanics, quan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
