p111_lecture14

p111_lecture14 - Chapter 7 Impulse and Momentum 7.2 The...

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Chapter 7 Impulse and Momentum
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7.2 The Principle of Conservation of Linear Momentum ( ) o f P P r r ! = " t forces external average of sum If the sum of the external forces is zero, then o f P P r r ! = 0 o f P P r r = PRINCIPLE OF CONSERVATION OF LINEAR MOMENTUM The total linear momentum of an isolated system is constant (conserved). An isolated system is one for which the sum of the average external forces acting on the system is zero.
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7.2 The Principle of Conservation of Linear Momentum Applying the Principle of Conservation of Linear Momentum 1. Decide which objects are included in the system. 2. Relative to the system, identify the internal and external forces. 3. Verify that the system is isolated. 4. Set the final momentum of the system equal to its initial momentum. Remember that momentum is a vector.
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7.3 Collisions in One Dimension The total linear momentum is conserved when two objects collide, provided they constitute an isolated system.
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This note was uploaded on 06/03/2011 for the course PHY 111 taught by Professor Bolland during the Fall '10 term at Ohio State.

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p111_lecture14 - Chapter 7 Impulse and Momentum 7.2 The...

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