Responses
the motion of an object
the motion of an object
the amount of matter in an object
the amount of matter in an object
the distance traveled by an object over time
the distance traveled by an object over time
the change in velocity of an object over time
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The phrase that best defines momentum is the motion of an object.
However, more precisely, momentum in physics is defined as the product of the mass of an object and its velocity. So while "the motion of an object" captures the essence, a more complete definition includes both mass and velocity.
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