PHYS 221 Lecture Notes - Lecture 11: Momentum, Net Force, Free Body Diagram

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3 Jan 2020
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Linear momentum momentum a measure of an object"s quantity of motion p"s mu p momentum m mass velocity p mv. 2 mass is alway positive thus an object"s momentum points in the same direction as its velocity. 4 units kgs. in the momentum depends on both the object is and how fast it is moving. 2 the impulse delivered to an object by an individual. 3 the magnitude of strong the force is object an impulse depends on both how and how long it acts on always positive the force since the is. Ef"agot if net average force acts on an object over some duration of time the net impulse changes the object"s momentum. Momentum doesn"t change net impulse o net force 0 no acceleration if object"s mass doesn"tchange and velocity is changing then momentum is changing net impulse to force to net object is accelerating.

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