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Related to relativistic mass: Relativistic mass equation
In special relativity and general relativity, the observed mass of an object moving with respect to the observer. The relativistic mass is a function of the rest mass and the velocity of the object.
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|Noun||1.||relativistic mass - (physics) the mass of a body in motion relative to the observer: it is equal to the rest mass multiplied by a factor that is greater than 1 and that increases as the magnitude of the velocity increases|
mass - the property of a body that causes it to have weight in a gravitational field