what is the SI base unit of mass. How far back can we trace these things? Newtonâs second law of motion in terms of momentum states that the net external force equals the change in momentum of a system divided by the time over which it changes. In Physics, why is the symbol for impulse"J"? what is momentum defined as. kilogram. 1 decade ago. I know the equation for the momentum operator, but what exactly is the momentum operator?It's bizarre to me that taking the derivative of the wave function, which is an operator, should return something that isn't just a function. In physics, the symbol used for momentum is p. Therefore, the above equation can be rewritten as: p = mv. p = m â¢ v. where m is the mass and v is the velocity. The symbol for phase is Ï (lowercase phi). Choose from 500 different sets of physics momentum impulse collisions flashcards on Quizlet. In Newtonian physics, the usual symbol for momentum is the letter p ; so this can be written = where p is the momentum, m is the mass and v is the velocity If we apply Newton's 2nd Law, we can derive = â â The meaning is that the net force on an object is equal to the rate of change in momentum of the object. Mechanics. The SI unit of momentum is kilogram meters per second (kg m/s). Formula. Relevance. Kaylan 8 August, 10:14. Choosing "I" as its symbol would lead to confusion with moment of inertia and inertia. So, the momentum of the object is calculated to be 8.0 kg-m/s. m, M. kilogram. Looking for the abbreviation of Momentum? p=mv. To make it more convenient for users and easier to use and remember, we often use notations/symbols to represent these physical quantities. where m is the mass of the object and v is the velocity of the object. Why? They interact from a distance through electro-magnetic fields. Anonymous. The momentum density of an electromagnetic wave is given in cgs by \mathcal{P} = {1\over 4\pi c} \mathbf{E}\times\mathbf{B} = {\mathbf{S}\over c^2}, where c is the speed of light, E is the electric field, B is the magnetic field, and S is the Poynting vector. I am an AP Physics student, and I can't understand why the symbol for impulse is J. I talked to my teacher about it, and he told me he spent some time trying to find out what it means, and all of his searches were fruitless. Momentum can be â¦ Favorite Answer. The velocity changes from 0 m/s to 10 m/s while the momentum changes from 0 kg-m/s to 20 kg-m/s. 1.73 x10 29 kgm/s Jupiter has a mass of 1.8986×10 27 kg and an orbital velocity of 13.06 km/s. Find out what is the most common shorthand of Momentum on Abbreviations.com! For this reason the Germans and French chose "p" for momentum. Sometimes it is italicized in textbooks. Calculate its momentum. The German word for momentum is der Impuls [sic] and the French is l'impulsion. since "m" was reserved for mass, physicists decided to use "p", some claim it comes from Latin word "petere" meaning "to go" or "to seek" 1 0. Not sure how accurate that is but it sure beats the "all the other letters were used" answer. In physics, the symbol for momentum is usually denoted by â, so this can be written: â = â where These should not be translated as impulse which, as the integral of force over time, is a change of momentum. Momentum = Mass × Velocity In physics, the symbol for momentum is usually denoted by a small p, so the above equation can be rewritten as: where m is the mass and v the velocity. The most common symbol for momentum is p. The SI unit for momentum is kg m/s. So far, the best explanation I've come across is: This comes from the "right hand rule" of vector cross products. [350.55 kg m/s] 2. 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