L20_phys131_2nov07 - If impulse J is zero then i f P P =...

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Summary for Lecture 20 on November 2, 2007 Impulse J and Momentum P i t t f i n 1 i i SYS P P dt F J v m P f i - = = = Conservation of momentum:
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Unformatted text preview: If impulse J is zero, then i f P P = even if mechanical energy isn’t conserved!...
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