#momentum  the product of a body's mass and its velocity; "the momentum of the particles was deduced from meteoritic velocities"
  supertype:  #physical_property  a property used to characterize physical objects
  subtype:  #angular_momentum__angularmomentum  the product of the momentum of a rotating body and its distance from the axis of rotation; "any rotating body has an angular momentum about its center of mass"; "angular momentum makes the world go round"

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