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lo12 - PH 1110 A Term 2007 Lecture 12 Kinematics Dynamics...

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PH 1110, A Term 2007, Lecture 12 Kinematics Dynamics Energy Momentum and Impulse Last time: 1. Momentum p = m v 2. Impulse J = p = m v f - m v i This time: 1. More momentum and impulse problems 2. Conservation laws (energy, momentum) 3. Elastic, inelastic, and completely inelastic collisions 4. Puzzlers, reminders, youtube (Physics Collision Video 2007)
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Puzzlers: Momentum is a vector! Given two initial momenta for two balls of putty (mass m each), what final momenta do you expect? What were the impulses of the balls on each other?
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