PHSC112_Newton - time interval ∆(mv = F net ∆t m ∆v...

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Newton’s “Quantity of Motion” Momentum: p = m v Newton’s Three Laws of Motion First law: (law of inertia) If an object experiences no interaction of any kind, the object moves with constant velocity as time passes. Any change in the motion would be caused by a force on the object. If no force F net acts on an object of mass m, the object’s velocity V = a constant vector and mv = a constant vector Second law: (cause and effect) A change in momentum for an object is produced by a force acting for a given
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Unformatted text preview: time interval: ∆(mv) = F net ∆t. m ∆v / ∆t = F net . m a = F net . Third law: (action-reaction principle) All forces occur in pairs created by an interaction between two existing things. The interaction always results in a pair of equal-magnitude forces, one acting on one of the interacting objects, and the other on the other object. The two forces point in opposite directions. F on obj1 due to obj2 = -F on obj2 due to obj1...
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This note was uploaded on 04/24/2010 for the course ANTH 7173 taught by Professor George during the Spring '10 term at CSU Long Beach.

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