Lecture-13 - Impulse ImpulseandMomentum Lecture#13...

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pulse and Momentum Impulse and Momentum Lecture #13 – Ch. 7.4 & 7.5 Physics 125–Fall 2010 Dr. Mike Melnichuk mmeln@umich.edu Office: 2409 Randall Lab phys125lecture@umich.edu ffice Hours: 2:00 :00 / Mon & Tue Rm 1416 Randall Lab Office Hours: 2:00 – 4:00 / Mon. & Tue. in Rm. 1416 Randall Lab.
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2D Collisions A 2 Collision is equal to two simultaneous 1 Collisions on the and axes, respectively. D D x y This means that you will first find the and x y components of each (vector) momentum involved in the collision and THEN apply conservation of (vector) momentum twice - first on the axis and second on the axis: x y :: fx i x xaxis pp p = GG G 1 2 x fx f x ppp += + GGG 1 : ix iy fy yaxis p p = 21 12 1 2 : ix iy i y f y p p p + G
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2D Inelastic Collision In a 2 INELASTIC (STICKY) COLLISION the omentum is conserved but the (kinetic) ergy is NOT. D momentum is conserved but the (kinetic) energy is NOT. G 1 m 1 i v 1 i θ v G 2 mm + 2 m 2 i v G 2 i f ( ) 1 1 2 2 2 1 2 : cos( ) cos( ) cos( ) i i i ff xaxis mv m m v θθ += + GG G f ( ) 12 () 11 1 2 1 2
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This note was uploaded on 12/08/2011 for the course PHYSICS 125 taught by Professor Unknown during the Fall '08 term at University of Michigan.

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Lecture-13 - Impulse ImpulseandMomentum Lecture#13...

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