chapter6.4_slides

chapter6.4_slides - X: Y: If the collision is elastic , we...

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10/10/2009 1 Not too much fun if we live in a 1-D world, but fun comes with costs complexity Collision in 2D (and more generally in 3D), total momentum of an isolated system is also conserved. Conservation of momentum in 2D: Explicit form: f y i y f x i x p p p p , , , , X-component Y-component f y f y i y i y f x f x i x i x v m v m v m v m v m v m v m v m , 2 2 , 1 1 , 2 2 , 1 1 , 2 2 , 1 1 , 2 2 , 1 1 Before collision, m 1 has horizontal velocity v 1i, m 2 is at rest After collision, m1 has final velocity v 2f , m2, v 2f Components of momentum: f y i y f x i x p p p p , , , , i i i x v m v m p 1 1 1 1 , 0 ) cos( ) cos( 2 2 1 1 , f f f x v m v m p 0 0 0 , i y p ) sin( ) sin( 2 2 1 1 , f f f y v m v m p
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10/10/2009 2 Conservation of momentum:
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Unformatted text preview: X: Y: If the collision is elastic , we also have the conservation of energy For perfectly inelastic collision , both objects will have the same final velocity Please go through Example 6.8 in the book by yourself. f y i y f x i x p p p p , , , , ) cos( ) cos( 2 2 1 1 1 1 f f i v m v m v m ) sin( ) sin( 2 2 1 1 f f v m v m 2 2 2 2 1 1 2 1 1 2 1 2 1 2 1 f f i v m v m v m...
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chapter6.4_slides - X: Y: If the collision is elastic , we...

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