Chapter9_1-3_FA05 - Gaining Momentum: Chapter 9 New...

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Gaining Momentum: Chapter 9 New Vocabulary: Linear Momentum V m P = Major Concepts of Chapter 9: •Linear momentum is conserved. It remains the same in the absence of an external force. •Linear momentum can be changed by an impulse (a force acting for a period of time). •Linear momentum is unchanged in collisions •There are two types of collisions: inelastic and elastic. Linear momentum is conserved in BOTH. •An “elastic” collision is one in which the objects “bounce”, and energy is conserved. •An “inelastic” collision is one in which the objects stick together, and energy is lost to heat. Impulse (force times time)
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Momentum is useful because it remains unchanged in the absence of external forces The total momentum of a system of moving objects is the sum of the individual momenta = + + = i i i TOT V m V m V m P ... 2
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This note was uploaded on 08/16/2011 for the course PHY 2053 taught by Professor Vellaris during the Fall '08 term at University of Central Florida.

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Chapter9_1-3_FA05 - Gaining Momentum: Chapter 9 New...

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